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Pharmacology for Nursing Care - E-Book

Pharmacology for Nursing Care - E-Book

Richard A. Lehne | Laura Rosenthal

(2014)

Additional Information

Book Details

Abstract

A favorite among nursing students, Pharmacology for Nursing Care, 8th Edition, features a uniquely engaging writing style, clear explanations, and unmatched clinical precision and currency to help you gain a solid understanding of key drugs and their implications -- as opposed to just memorization of certain facts. Compelling features such as a drug prototype approach, use of large and small print to distinguish need-to-know versus nice-to-know content, and a focus on major nursing implications save you study time by directing your attention on the most important, need-to-know information. The new edition also features an abundance of content updates to keep you ahead of the curve in school and in professional practice.

  • UNIQUE! Engaging writing style with clear explanations makes content easy to grasp and even enjoyable to learn.
  • A drug prototype approach uses one drug within each drug family to characterize all members of its group to help you learn about related drugs currently on the market and drugs that will be released once you begin practice.
  • UNIQUE! Special Interest Topic boxes address timely issues in pharmacology and connect pharmacology content with current trends.
  • Large print/small print design distinguishes essential "need-to-know" information from "nice-to-know" information.
  • Limited discussion of adverse effects and drug interactions keeps your limited study time focused on only the most clinically important information.
  • Reliance on up-to-date evidence-based clinical guidelines ensures that therapeutic uses are clinically relevant.
  • Integrated and summarized nursing content demonstrates the vital interplay between drug therapy and nursing care.
  • Coverage of dietary supplements and herbal interactions equips you to alert patients and caregivers to the potential dangers of certain dietary supplements, including interactions with prescribed and over-the-counter drugs and herbal therapies.
  • Additional learning features provide a touchstone for study and review as you complete reading assignments and build a foundation of pharmacologic knowledge.

Table of Contents

Section Title Page Action Price
Front cover Cover
Table of contents ifc1
Front matter i
Pharmacology for nursing care i
Copyright ii
Dedication iii
About the author iv
Contributors and reviewers v
Welcome to our eighth edition vi
What’s new in the book? vi
New drugs vi
New special interest topics vi
Restructured content vi
Canadian trade names vii
Learning supplements for students vii
Evolve student resources vii
Pharmacology online vii
Study guide vii
Teaching supplements for instructors vii
Evolve instructor resources vii
Please write vii
Preface viii
Laying foundations in basic principles viii
Reviewing physiology and pathophysiology viii
Teaching through prototypes viii
Large print and small print: A way to focus on essentials viii
Using clinical reality to prioritize content viii
Nursing implications: Demonstrating the application of pharmacology in nursing practice ix
About dosage calculations ix
Ways to use this textbook ix
Acknowledgments x
1 Orientation to pharmacology 1
Four basic terms 1
Properties of an ideal drug 1
The big three: Effectiveness, safety, and selectivity 2
Additional properties of an ideal drug 2
Because no drug is ideal . . . 2
The therapeutic objective 3
Factors that determine the intensity of drug responses 3
Administration 3
Pharmacokinetics 3
Pharmacodynamics 3
Sources of individual variation 4
Summary 4
Key points 4
2 Application of pharmacology in nursing practice 5
Evolution of nursing responsibilities regarding drugs 5
Application of pharmacology in patient care 6
Preadministration assessment 6
Dosage and administration 6
Evaluating and promoting therapeutic effects 7
Minimizing adverse effects 7
Minimizing adverse interactions 7
Making PRN decisions 7
Managing toxicity 8
Application of pharmacology in patient education 8
Dosage and administration 8
Promoting therapeutic effects 8
Minimizing adverse effects 9
Minimizing adverse interactions 9
Application of the nursing process in drug therapy 9
Review of the nursing process 9
Applying the nursing process in drug therapy 9
Preadministration assessment 10
Baseline data needed to evaluate therapeutic effects.  10
Baseline data needed to evaluate adverse effects.  10
Identification of high-risk patients.  10
Assessment of the patient’s capacity for self-care.  10
Analysis and nursing diagnoses 11
Planning 11
Defining goals.  11
Setting priorities.  11
Identifying interventions.  12
Establishing criteria for evaluation.  12
Implementation 12
Evaluation 12
Use of a modified nursing process format to summarize nursing implications in this text 12
Summary 13
Key points 14
3 Drug regulation, development, names, and information 15
Landmark drug legislation 15
New drug development 16
The randomized controlled trial 16
Stages of new drug development 17
Preclinical testing 17
Clinical testing 17
Phase I.  17
Phases II and III.  17
Phase IV: Postmarketing surveillance.  17
Limitations of the testing procedure 17
Limited information in women and children 17
Women.  17
Children.  18
Failure to detect all adverse effects 18
Exercising discretion regarding new drugs 19
Drug names 19
The three types of drug names 19
Which name to use, generic or trade? 20
The little problems with generic names 20
The big problems with trade names 21
A single drug can have multiple trade names.  21
Over-the-counter (OTC) products with the same trade name may have different active ingredients.  21
Trade names can endanger international travelers.  22
What if peas were marketed like drugs? 22
Generic products versus brand-name products 23
Are generic products and brand-name products therapeutically equivalent?  23
Would a difference between brand-name and generic products justify the use of trade names?  23
Conclusion regarding generic names and trade names 23
Over-the-counter drugs 23
Sources of drug information 24
People 24
Published information 24
Text-like books 24
Newsletters 24
Reference books 25
The internet 25
Key points 25
4 Pharmacokinetics 26
Application of pharmacokinetics in therapeutics 26
A note to chemophobes 26
Passage of drugs across membranes 27
Membrane structure 27
Three ways to cross a cell membrane 27
Channels and pores 27
Transport systems 27
P-glycoprotein.  28
Direct penetration of the membrane 28
Polar molecules 28
Ions 29
Quaternary ammonium compounds 29
pH-dependent ionization 29
Ion trapping (pH partitioning) 30
Absorption 30
Factors affecting drug absorption 30
Characteristics of commonly used routes of administration 31
Intravenous 32
Barriers to absorption.  32
Absorption pattern.  32
Advantages.  32
Rapid onset.  32
Control.  32
Permits use of large fluid volumes.  32
Permits use of irritant drugs.  32
Disadvantages.  32
High cost, difficulty, and inconvenience.  32
Irreversibility.  32
Fluid overload.  33
Infection.  33
Embolism.  33
The importance of reading labels.  33
Intramuscular 33
Barriers to absorption.  33
5 Pharmacodynamics 48
Dose-response relationships 48
Basic features of the dose-response relationship 48
Maximal efficacy and relative potency 48
Maximal efficacy 48
Relative potency 49
Drug-receptor interactions 50
Introduction to drug receptors 50
The four primary receptor families 51
Receptors and selectivity of drug action 52
Theories of drug-receptor interaction 53
Simple occupancy theory 53
Modified occupancy theory 53
Affinity.  53
Intrinsic activity.  53
Agonists, antagonists, and partial agonists 53
Agonists 54
Antagonists 54
Noncompetitive versus competitive antagonists.  54
Noncompetitive (insurmountable) antagonists.  54
Competitive (surmountable) antagonists.  54
Partial agonists 55
Regulation of receptor sensitivity 55
Drug responses that do not involve receptors 55
Interpatient variability in drug responses 55
The therapeutic index 57
Key points 58
6 Drug interactions 59
Drug-drug interactions 59
Consequences of drug-drug interactions 59
Intensification of effects 59
Increased therapeutic effects.  59
Increased adverse effects.  59
Reduction of effects 59
Reduced therapeutic effects.  59
Reduced adverse effects.  60
Creation of a unique response 60
Basic mechanisms of drug-drug interactions 60
Direct chemical or physical interactions 60
Pharmacokinetic interactions 60
Altered absorption.  60
Altered distribution.  60
Altered metabolism.  60
Induction of CYP isozymes.  60
Inhibition of CYP isozymes.  62
Altered renal excretion.  62
Interactions that involve p-glycoprotein.  62
Pharmacodynamic interactions 62
Interactions at the same receptor.  62
Interactions resulting from actions at separate sites.  63
Combined toxicity 63
Clinical significance of drug-drug interactions 63
Minimizing adverse drug-drug interactions 63
Drug-food interactions 63
Impact of food on drug absorption 63
Impact of food on drug metabolism: The grapefruit juice effect 64
Impact of food on drug toxicity 65
Impact of food on drug action 65
Timing of drug administration with respect to meals 65
Drug-supplement interactions 65
Key points 66
7 Adverse drug reactions and medication errors 67
Adverse drug reactions 67
Scope of the problem 67
Definitions 67
Side effect 67
Toxicity 67
Allergic reaction 67
Idiosyncratic effect 68
Iatrogenic disease 68
Physical dependence 68
Carcinogenic effect 68
Teratogenic effect 68
Organ-specific toxicity 68
Hepatotoxic drugs 68
QT interval drugs 69
Identifying adverse drug reactions 69
Adverse reactions to new drugs 70
Ways to minimize adverse drug reactions 72
Medication guides, boxed warnings, and REMS 72
Medication guides 72
Boxed warnings 72
Risk evaluation and mitigation strategies 73
Medication errors 73
What’s a medication error and who makes them? 73
Types of medication errors 73
Causes of medication errors 73
Ways to reduce medication errors 74
How to report a medication error 76
Key points 78
8 Individual variation in drug responses 79
Body weight and composition 79
Age 79
Pathophysiology 79
Kidney disease 79
Liver disease 80
Tolerance 80
Pharmacodynamic tolerance 80
Metabolic tolerance 81
Placebo effect 81
Variability in absorption 81
Bioavailability 83
Other causes of variable absorption 83
Genetics and pharmacogenomics 83
Genetic variants that alter drug metabolism 83
Genetic variants that alter drug targets 85
Genetic variants that alter immune responses to drugs 85
Gender 85
Race 86
Drug interactions 86
Diet 86
Failure to take medicine as prescribed 87
Key points 87
9 Drug therapy during pregnancy and breast-feeding 88
Drug therapy during pregnancy: Basic considerations 88
Physiologic changes during pregnancy and their impact on drug disposition and dosing 88
Placental drug transfer 89
Adverse reactions during pregnancy 89
Drug therapy during pregnancy: Teratogenesis 89
Incidence and causes of congenital anomalies 89
Teratogenesis and stage of development 89
Identification of teratogens 89
FDA pregnancy risk categories 92
Minimizing the risk of drug-induced teratogenesis 92
Responding to teratogen exposure 92
Drug therapy during breast-feeding 93
Key points 94
10 Drug therapy in pediatric patients 95
Pharmacokinetics: Neonates and infants 95
Absorption 96
Distribution 96
Hepatic metabolism 96
Renal excretion 97
Pharmacokinetics: Children 1 year and older 97
Adverse drug reactions 97
Dosage determination 97
Promoting adherence 98
Key points 98
11 Drug therapy in geriatric patients 99
Pharmacokinetic changes in the elderly 99
Pharmacodynamic changes in the elderly 100
Adverse drug reactions and drug interactions 100
Promoting adherence 100
Key points 102
12 Basic principles of neuropharmacology 103
How neurons regulate physiologic processes 103
Basic mechanisms by which neuropharmacologic agents ACT 104
Sites of action: Axons versus synapses 104
Axonal conduction 104
Synaptic transmission 104
Receptors 104
Steps in synaptic transmission 104
Effects of drugs on the steps of synaptic transmission 105
Multiple receptor types and selectivity of drug action 106
An approach to learning about peripheral nervous system drugs 107
Key points 107
13 Physiology of the peripheral nervous system 109
Divisions of the nervous system 109
Overview of autonomic nervous system functions 109
Functions of the parasympathetic nervous system 109
Functions of the sympathetic nervous system 110
Basic mechanisms by which the autonomic nervous system regulates physiologic processes 110
Anatomic considerations 111
Introduction to transmitters of the peripheral nervous system 112
Introduction to receptors of the peripheral nervous system 112
Exploring the concept of receptor subtypes 113
Locations of receptor subtypes 115
Functions of cholinergic and adrenergic receptor subtypes 115
Functions of cholinergic receptor subtypes 115
Functions of adrenergic receptor subtypes 116
Alpha1 receptors 116
Alpha2 receptors 116
Beta1 receptors 117
Beta2 receptors 117
Dopamine receptors 118
Receptor specificity of the adrenergic transmitters 118
Transmitter life cycles 119
Life cycle of acetylcholine 119
Life cycle of norepinephrine 120
Life cycle of epinephrine 120
Key points 121
Introduction to Cholinergic Drugs 122
14 Muscarinic agonists and antagonists 124
Muscarinic agonists 124
Bethanechol 124
Mechanism of action 124
Pharmacologic effects 124
Therapeutic uses 124
Urinary retention.  124
Adverse effects 125
Cardiovascular system.  125
Alimentary system.  125
Urinary tract.  125
Exacerbation of asthma.  125
Dysrhythmias in hyperthyroid patients.  125
Toxicology of muscarinic agonists 126
Muscarinic antagonists (anticholinergic drugs) 126
Atropine 126
Mechanism of action 126
Pharmacologic effects 126
Heart.  126
Exocrine glands.  126
Smooth muscle.  126
Eye.  127
Central nervous system (cns).  127
Dose dependency of muscarinic blockade.  127
Therapeutic uses 127
Preanesthetic medication.  127
Disorders of the eye.  127
Bradycardia.  127
Intestinal hypertonicity and hypermotility.  127
Muscarinic agonist poisoning.  127
Adverse effects 127
Xerostomia (dry mouth).  127
Blurred vision and photophobia.  128
Elevation of intraocular pressure.  128
Urinary retention.  128
Constipation.  128
Anhidrosis.  128
Tachycardia.  128
Asthma.  128
Drug interactions 128
Muscarinic antagonists for overactive bladder 128
Overactive bladder: Characteristics and overview of treatment 128
Introduction to anticholinergic therapy of OAB 129
Specific anticholinergic drugs for OAB 129
Toxicology of muscarinic antagonists 132
Key points 133
15 Cholinesterase inhibitors and their use in myasthenia gravis 135
Reversible cholinesterase inhibitors 135
Neostigmine 135
Chemistry 135
Mechanism of action 135
Pharmacologic effects 135
Muscarinic responses.  136
Neuromuscular effects.  137
Central nervous system.  137
Pharmacokinetics 137
Therapeutic uses 137
Myasthenia gravis.  137
Reversal of competitive (nondepolarizing) neuromuscular blockade.  137
Adverse effects 137
Excessive muscarinic stimulation.  137
Neuromuscular blockade.  137
Precautions and contraindications 137
Drug interactions 137
Muscarinic antagonists.  137
Competitive neuromuscular blockers.  137
Depolarizing neuromuscular blockers.  137
Acute toxicity 137
Symptoms.  137
Treatment.  137
Other reversible cholinesterase inhibitors 138
Physostigmine 138
“Irreversible” cholinesterase inhibitors 138
Basic pharmacology 138
Chemistry 138
Mechanism of action 139
Pharmacologic effects 139
Therapeutic uses 139
Toxicology 139
Myasthenia gravis 139
Pathophysiology 139
Treatment with cholinesterase inhibitors 140
Key points 141
16 Drugs that block nicotinic cholinergic transmission: Neuromuscular blocking agents and ganglionic blocking agents 143
Neuromuscular blocking agents 143
Control of muscle contraction 143
Competitive (nondepolarizing) neuromuscular blockers 145
Group properties 145
Chemistry 145
Mechanism of action 145
Pharmacologic effects 145
Muscle relaxation.  145
Hypotension.  145
Central nervous system.  145
Pharmacokinetics 145
Therapeutic uses 146
Adverse effects 146
Respiratory arrest.  146
Hypotension.  146
Precautions and contraindications 146
Myasthenia gravis.  146
Electrolyte disturbances.  146
Drug interactions 146
General anesthetics.  146
Antibiotics.  146
Cholinesterase inhibitors.  146
Toxicity 147
Properties of individual agents 147
Depolarizing neuromuscular blockers: Succinylcholine 147
Therapeutic uses of neuromuscular blockers 148
Key points 150
17 Adrenergic agonists 152
Mechanisms of adrenergic receptor activation 152
Overview of the adrenergic agonists 153
Chemical classification: Catecholamines versus noncatecholamines 153
Catecholamines 153
Noncatecholamines 153
Receptor specificity 153
Therapeutic applications and adverse effects of adrenergic receptor activation 154
Clinical consequences of alpha1 activation 155
Therapeutic applications of alpha1 activation 155
Hemostasis.  155
Nasal decongestion.  155
Adjunct to local anesthesia.  155
Elevation of blood pressure.  155
Mydriasis.  155
Adverse effects of alpha1 activation 156
Hypertension.  156
Necrosis.  156
Bradycardia.  156
Clinical consequences of alpha2 activation 156
Clinical consequences of beta1 activation 156
Therapeutic applications of beta1 activation 156
Heart failure.  156
Shock.  156
Atrioventricular heart block.  156
Cardiac arrest caused by asystole.  156
Adverse effects of beta1 activation 156
Altered heart rate or rhythm.  156
Angina pectoris.  156
Clinical consequences of beta2 activation 156
Therapeutic applications of beta2 activation 156
Asthma.  156
Delay of preterm labor.  157
Adverse effects of beta2 activation 157
Hyperglycemia.  157
Tremor.  157
Clinical consequences of dopamine receptor activation 157
Multiple receptor activation: Treatment of anaphylactic shock 157
Properties of representative adrenergic agonists 157
Epinephrine 157
Therapeutic uses 157
Pharmacokinetics 159
Absorption.  159
Inactivation.  159
Adverse effects 159
Hypertensive crisis.  159
Dysrhythmias.  159
Angina pectoris.  159
Necrosis following extravasation.  159
Hyperglycemia.  159
Drug interactions 159
MAO inhibitors.  159
Tricyclic antidepressants.  159
General anesthetics.  159
Alpha-adrenergic blocking agents.  159
Beta-adrenergic blocking agents.  159
Preparations, dosage, and administration 159
Isoproterenol 160
18 Adrenergic antagonists 165
Alpha-adrenergic antagonists 165
Therapeutic and adverse responses to alpha blockade 165
Therapeutic applications of alpha blockade 165
Adverse effects of alpha blockade 166
Adverse effects of alpha1 blockade 166
Orthostatic hypotension.  166
Reflex tachycardia.  166
Nasal congestion.  166
Inhibition of ejaculation.  166
Properties of individual alpha blockers 167
Prazosin 167
Beta-adrenergic antagonists 168
Therapeutic and adverse responses to beta blockade 168
Therapeutic applications of beta blockade 168
Adverse effects of beta blockade 169
Adverse effects of beta1 blockade 169
Bradycardia.  169
Reduced cardiac output.  169
Precipitation of heart failure.  169
AV heart block.  169
Rebound cardiac excitation.  169
Adverse effects of beta2 blockade 170
Bronchoconstriction.  170
Hypoglycemia from inhibition of glycogenolysis.  170
Adverse effects in neonates from beta1 and beta2 blockade 170
Properties of individual beta blockers 170
Propranolol 170
Pharmacologic effects 170
Pharmacokinetics 170
Therapeutic uses 170
Adverse effects 170
Bradycardia.  170
AV heart block.  170
Heart failure.  170
Rebound cardiac excitation.  170
Bronchoconstriction.  171
Inhibition of glycogenolysis.  171
CNS effects.  171
Effects in neonates.  171
Precautions, warnings, and contraindications 171
Severe allergy.  171
Diabetes.  171
Cardiac, respiratory, and psychiatric disorders.  172
Drug interactions 172
Calcium channel blockers.  172
Insulin.  172
Preparations, dosage, and administration 172
General dosing considerations.  172
Metoprolol 173
Other beta-adrenergic blockers 173
Key points 174
19 Indirect-acting antiadrenergic agents 177
Centrally acting alpha2 agonists 177
Clonidine 177
Mechanism of antihypertensive action 177
Pharmacologic effects 177
Therapeutic uses 177
Adverse effects 177
Drowsiness.  177
Xerostomia.  178
Rebound hypertension.  178
Use in pregnancy.  178
Abuse.  178
Methyldopa and methyldopate 178
Mechanism of action 178
Pharmacologic effects 178
Therapeutic use 178
Adverse effects 178
Positive Coombs’ test and hemolytic anemia.  178
Hepatotoxicity.  179
Key points 180
20 Introduction to central nervous system pharmacology 182
Transmitters of the CNS 182
The blood-brain barrier 182
How do CNS drugs produce therapeutic effects? 183
Adaptation of the CNS to prolonged drug exposure 183
Development of new psychotherapeutic drugs 183
Approaching the study of CNS drugs 183
Key points 184
21 Drugs for Parkinsons disease 185
Pathophysiology that underlies motor symptoms 185
Overview of motor symptom management 186
Pharmacology of the drugs used for motor symptoms 188
Levodopa 188
Use in Parkinson’s disease 188
Beneficial effects.  188
Acute loss of effect.  188
Mechanism of action 188
Pharmacokinetics 188
Adverse effects 188
Nausea and vomiting.  188
Dyskinesias.  189
Cardiovascular effects.  189
Psychosis.  189
Other adverse effects.  191
Drug interactions 191
First-generation antipsychotic drugs.  191
Monoamine oxidase inhibitors.  191
Anticholinergic drugs.  192
Food interactions 192
Levodopa/carbidopa 192
Mechanism of action 192
Advantages of carbidopa 192
Disadvantages of carbidopa 192
Dopamine agonists 192
Pramipexole 193
Actions and uses.  193
Adverse effects and interactions.  194
COMT inhibitors 195
Entacapone 195
Actions and therapeutic use.  195
Adverse effects.  195
MAO-B inhibitors 196
Selegiline 196
Actions and use.  196
Key points 198
22 Alzheimers disease 201
Pathophysiology 201
Risk factors, symptoms, biomarkers, and diagnosis 202
Drugs for cognitive impairment 204
Cholinesterase inhibitors 205
Group properties 205
Mechanism of action.  205
Therapeutic effect.  205
Adverse effects.  205
Drug interactions.  206
Dosage and duration of treatment.  206
Properties of individual cholinesterase inhibitors 206
Memantine 206
Drugs for neuropsychiatric symptoms 208
Can we prevent Alzheimer’s disease or delay cognitive decline? 208
Key points 210
23 Drugs for multiple sclerosis 211
Overview of MS and its treatment 211
Pathophysiology 211
Signs and symptoms 212
MS subtypes 212
Diagnosis 212
Drug therapy overview 214
Disease-modifying therapy 214
Relapsing-remitting MS.  214
Secondary progressive MS.  214
Progressive-relapsing MS.  214
Primary progressive MS.  214
Treating an acute episode (relapse) 215
Drug therapy of symptoms 215
Disease-modifying drugs I: Immunomodulators 215
Interferon beta preparations 215
Description and mechanism 215
Therapeutic use 215
Adverse effects and drug interactions 215
Flu-like reactions.  215
Hepatotoxicity.  215
Myelosuppression.  215
Injection-site reactions.  215
Depression.  216
Neutralizing antibodies.  216
Drug interactions.  216
Glatiramer acetate 216
Natalizumab 216
Therapeutic uses 216
Multiple sclerosis.  216
Crohn’s disease.  216
Mechanism of action 216
24 Drugs for epilepsy 227
Seizure generation 227
Types of seizures 228
Partial seizures 228
Generalized seizures 228
Mixed seizures: Lennox-Gastaut syndrome 229
How antiepileptic drugs work 229
Basic therapeutic considerations 229
Therapeutic goal and treatment options 229
Diagnosis and drug selection 229
Drug evaluation 231
Monitoring plasma drug levels 231
Promoting patient adherence 231
Withdrawing antiepileptic drugs 231
Suicide risk with antiepileptic drugs 232
Classification of antiepileptic drugs 233
Traditional antiepileptic drugs 233
Phenytoin 233
Mechanism of action 233
Pharmacokinetics 234
Absorption.  234
Metabolism.  234
Therapeutic uses 234
Epilepsy.  234
Cardiac dysrhythmias.  234
Adverse effects 234
Effects on the cns.  234
Gingival hyperplasia.  235
Dermatologic effects.  235
Effects in pregnancy.  235
Cardiovascular effects.  235
Drug interactions 235
Interactions resulting from induction of hepatic drug-metabolizing enzymes.  235
Drugs that increase plasma levels of phenytoin.  235
Drugs that decrease plasma levels of phenytoin.  235
CNS depressants.  235
Preparations, dosage, and administration 235
Preparations.  235
Dosage.  235
Carbamazepine 236
Mechanism of action 236
Pharmacokinetics 236
Therapeutic uses 236
Epilepsy.  236
Bipolar disorder.  236
Trigeminal and glossopharyngeal neuralgias.  236
Adverse effects 236
CNS effects.  236
Hematologic effects.  236
Birth defects.  236
Hypo-osmolarity.  236
Dermatologic effects.  236
Drug-drug and drug-food interactions 237
Induction of drug-metabolizing enzymes.  237
Phenytoin and phenobarbital.  237
Grapefruit juice.  237
Valproic acid 237
Nomenclature 237
Therapeutic uses 237
Seizure disorders.  237
Bipolar disorder.  237
Migraine.  238
Adverse effects 238
Gastrointestinal effects.  238
Hepatotoxicity.  238
Pancreatitis.  238
Pregnancy-related harm.  238
Hyperammonemia.  238
Ethosuximide 238
Phenobarbital 239
Newer antiepileptic drugs 240
Oxcarbazepine 240
Management of epilepsy during pregnancy 245
Management of generalized convulsive status epilepticus 246
Key points 246
25 Drugs for muscle spasm and spasticity 252
Drug therapy of muscle spasm: Centrally acting muscle relaxants 252
Drugs for spasticity 253
Baclofen 253
Mechanism of action 253
Therapeutic use 253
Adverse effects 253
CNS effects.  253
Withdrawal.  253
Diazepam 254
Dantrolene 254
Mechanism of action 254
Therapeutic uses 254
Spasticity.  254
Malignant hyperthermia.  254
Adverse effects 254
Hepatic toxicity.  254
Key points 255
26 Local anesthetics 257
Basic pharmacology of the local anesthetics 257
Classification 257
Mechanism of action 257
Selectivity of anesthetic effects 257
Time course of local anesthesia 257
Use with vasoconstrictors 258
Fate in the body 258
Adverse effects 258
Properties of individual local anesthetics 259
Procaine 259
Lidocaine 259
Cocaine 259
Other local anesthetics 260
Clinical use of local anesthetics 260
Topical administration 260
Administration by injection 261
Key points 262
27 General anesthetics 264
Inhalation anesthetics 264
Basic pharmacology 264
Properties of an ideal inhalation anesthetic 264
Balanced anesthesia 264
Molecular mechanism of action 265
Minimum alveolar concentration 265
Pharmacokinetics 265
Uptake and distribution 265
Uptake.  265
Distribution.  266
Elimination 266
Export in the expired breath.  266
Metabolism.  266
Adverse effects 266
Drug interactions 266
Adjuncts to inhalation anesthesia 266
Preanesthetic medications 266
Benzodiazepines.  266
Opioids.  266
Alpha2-adrenergic agonists.  267
Anticholinergic drugs.  267
Neuromuscular blocking agents 267
Postanesthetic medications 267
Analgesics.  267
Antiemetics.  267
Muscarinic agonists.  267
Dosage and administration 267
Classification of inhalation anesthetics 267
Properties of individual inhalation anesthetics 268
Halothane 268
Anesthetic properties 268
Potency.  268
Time course.  268
Analgesia.  268
Muscle relaxation.  268
Adverse effects 268
Hypotension.  268
Respiratory depression.  268
Promotion of dysrhythmias.  268
Malignant hyperthermia.  268
Hepatotoxicity.  268
Elimination 268
Isoflurane 268
Nitrous oxide 269
Intravenous anesthetics 269
Key points 272
28 Opioid (narcotic) analgesics, opioid antagonists, and nonopioid centrally acting analgesics 274
Opioid analgesics 274
Introduction to the opioids 274
Terminology 274
Endogenous opioid peptides 274
Opioid receptors 274
Classification of drugs that act at opioid receptors 275
Basic pharmacology of the opioids 275
Morphine 275
Overview of pharmacologic actions 275
Therapeutic use: Relief of pain 275
Mechanism of analgesic action.  276
Adverse effects 277
Respiratory depression.  277
Constipation.  277
Orthostatic hypotension.  277
Urinary retention.  277
Cough suppression.  277
Biliary colic.  277
Emesis.  278
Elevation of intracranial pressure.  278
Euphoria/dysphoria.  278
Sedation.  278
Miosis.  278
Birth defects.  278
Neurotoxicity.  278
Adverse effects from prolonged use.  278
Pharmacokinetics 278
Tolerance and physical dependence 278
Tolerance.  278
Physical dependence.  279
Abuse liability 279
Precautions 279
Decreased respiratory reserve.  279
Labor and delivery.  279
Neonatal opioid dependence.  279
Head injury.  279
Other precautions.  280
Drug interactions 280
CNS depressants.  280
Anticholinergic drugs.  280
Hypotensive drugs.  280
Monoamine oxidase inhibitors.  280
Agonist-antagonist opioids.  280
Opioid antagonists.  280
Other interactions.  280
Toxicity 280
Clinical manifestations.  280
Treatment.  280
Dosage and administration 281
General guidelines.  281
Other strong opioid agonists 281
Fentanyl 281
Parenteral.  281
Transdermal system.  283
Transmucosal.  283
Moderate to strong opioid agonists 285
Codeine 285
Oxycodone 285
Hydrocodone 286
Agonist-antagonist opioids 286
Pentazocine 287
Actions and uses.  287
Clinical use of opioids 288
Dosing guidelines 288
Pain assessment 288
Dosage determination 288
Dosing schedule 289
Avoiding a withdrawal reaction 289
Physical dependence, abuse, and addiction as clinical concerns 289
Definitions 289
Physical dependence.  289
Abuse.  289
Addiction.  290
Minimizing fears about physical dependence 290
Minimizing fears about addiction 290
Balancing the need to provide pain relief with the desire to minimize abuse 290
Patient-controlled analgesia 290
Using opioids for specific kinds of pain 291
REMS to reduce opioid-related morbidity, mortality, and abuse 292
Opioid antagonists 292
Key points 296
29 Pain management in patients with cancer 300
Pathophysiology of pain 300
Management strategy 301
Assessment and ongoing evaluation 301
Comprehensive initial assessment 303
Assessment of pain intensity and character: The patient self-report 303
Physical and neurologic examinations 303
Diagnostic tests 303
Psychosocial assessment 303
Pain intensity scales 303
Ongoing evaluation 303
Barriers to assessment 304
Drug therapy 305
Nonopioid analgesics 305
Nonsteroidal anti-inflammatory drugs 305
Acetaminophen 306
Opioid analgesics 307
Mechanism of action and classification 307
Tolerance and physical dependence 307
Tolerance.  307
Physical dependence.  308
Addiction 308
Drug selection 308
Preferred opioids.  308
Opioid rotation.  308
Opioids to use with special caution.  309
Opioids to avoid.  309
Dosage 309
Routes of administration 309
Oral.  309
Rectal.  309
Transdermal.  309
Intravenous and subcutaneous.  309
Intramuscular.  310
Intraspinal.  310
Intraventricular.  310
Patient-controlled analgesia.  310
Managing breakthrough pain 310
Managing side effects 310
Respiratory depression.  310
Constipation.  311
Sedation.  311
Nausea and vomiting.  311
Other side effects.  311
Adjuvant analgesics 311
Antidepressants 311
Tricyclic antidepressants.  311
Other antidepressants.  311
Antiseizure drugs 311
Local anesthetics/antidysrhythmics 312
CNS stimulants 312
Antihistamines 312
Glucocorticoids 312
Bisphosphonates 313
Nondrug therapy 313
Invasive procedures 313
Neurolytic nerve block 313
Neurosurgery 313
Tumor surgery 313
Radiation therapy 313
Physical and psychosocial interventions 313
Physical interventions 313
Heat.  313
Cold.  314
Massage.  314
Exercise.  314
Acupuncture and transcutaneous electrical nerve stimulation.  314
Psychosocial interventions 314
Relaxation and imagery.  314
Cognitive distraction.  314
Peer support groups.  314
Pain management in special populations 314
The elderly 314
Young children 315
Assessment 315
Verbal children.  315
Preverbal and nonverbal children.  315
Treatment 315
Opioid abusers 315
Patient education 316
The joint commission pain management standards 316
Key points 317
30 Drugs for headache 319
Migraine headache 320
Characteristics, pathophysiology, and overview of treatment 320
Abortive therapy 321
Analgesics 321
Aspirin-like drugs 321
Opioid analgesics 321
Ergot alkaloids 321
Ergotamine 321
Mechanism of antimigraine action.  321
Therapeutic uses.  321
Pharmacokinetics.  322
Adverse effects.  322
Overdose.  322
Drug interactions.  322
Triptans. ​ 322
CYP3A4 inhibitors.  322
Physical dependence.  322
Contraindications.  322
Dihydroergotamine 323
Therapeutic uses.  323
Pharmacologic effects.  323
31 Antipsychotic agents and their use in schizophrenia 332
Schizophrenia: Clinical presentation and etiology 332
First-generation (conventional) antipsychotics 334
Group properties 334
Classification 334
Classification by potency 334
Chemical classification 334
Mechanism of action 334
Therapeutic uses 334
Adverse effects 336
Extrapyramidal symptoms 337
Acute dystonia.  337
Parkinsonism.  337
Akathisia.  338
Tardive dyskinesia.  338
Other adverse effects 338
Neuroleptic malignant syndrome.  338
Anticholinergic effects.  338
Orthostatic hypotension.  338
Sedation.  339
Neuroendocrine effects.  339
Seizures.  339
Sexual dysfunction.  339
Agranulocytosis.  339
Severe dysrhythmias.  339
Effects in elderly patients with dementia.  339
Signs of withdrawal and extrapyramidal symptoms in neonates.  339
Physical and psychologic dependence 339
Drug interactions 339
Toxicity 340
Properties of individual agents 340
High-potency agents 340
Haloperidol 340
Actions and uses.  340
Adverse effects.  340
Second-generation (atypical) antipsychotics 341
Depot antipsychotic preparations 346
Management of schizophrenia 346
Key points 348
32 Antidepressants 354
Major depression: Clinical features, pathogenesis, and treatment overview 354
Drugs used for depression 356
Basic considerations 357
Selective serotonin reuptake inhibitors (SSRIs) 358
Fluoxetine 358
Mechanism of action 358
Therapeutic uses 359
Pharmacokinetics 359
Adverse effects 360
Sexual dysfunction.  360
Weight gain.  360
Serotonin syndrome.  360
Withdrawal syndrome.  360
Neonatal effects from use in pregnancy.  360
Teratogenesis.  360
Suicide risk.  360
Drug interactions 361
MAOIs and other drugs that increase the risk of serotonin syndrome.  361
Tricyclic antidepressants and lithium.  361
Antiplatelet drugs and anticoagulants.  361
Other SSRIs 362
Tricyclic antidepressants (TCAs) 364
Monoamine oxidase inhibitors (MAOIs) 367
Oral MAOIs 367
Mechanism of action 367
Therapeutic uses 368
Depression.  368
Other psychiatric uses.  368
Adverse effects 368
CNS stimulation.  368
Orthostatic hypotension.  368
Hypertensive crisis from dietary tyramine.  368
Drug interactions 370
Indirect-acting sympathomimetic agents.  370
Interactions secondary to inhibition of hepatic MAO.  370
Tricyclic antidepressants.  370
Serotonergic drugs.  370
Antihypertensive drugs.  370
Meperidine.  370
Transdermal MAOI: Selegiline 370
Atypical antidepressants 371
Bupropion 371
Mirtazapine 372
Somatic (nondrug) therapies for depression 373
Key points 374
33 Drugs for bipolar disorder 380
Characteristics of bipolar disorder 380
Types of mood episodes seen in BPD 380
Patterns of mood episodes 380
Etiology 381
Treatment of bipolar disorder 381
Drug therapy 381
Types of drugs employed 381
Mood stabilizers.  381
Antipsychotics.  381
Antidepressants.  381
Drug selection 382
Acute therapy: Manic episodes.  382
Acute therapy: Depressive episodes.  382
Long-term preventive treatment.  382
Promoting adherence 382
Nondrug therapy 382
Education and psychotherapy 382
Electroconvulsive therapy 383
Mood-stabilizing drugs 383
Lithium 383
Chemistry 383
Therapeutic uses 383
Bipolar disorder.  383
Mechanism of action 384
Pharmacokinetics 384
Absorption and distribution.  384
Excretion.  384
Monitoring plasma lithium levels.  384
Adverse effects 384
Adverse effects that occur when lithium levels are excessive.  384
Adverse effects that occur at therapeutic levels of lithium.  385
Early adverse effects.  385
Tremor.  385
Polyuria.  385
Renal toxicity.  385
Goiter and hypothyroidism.  385
Teratogenesis.  385
Use in lactation.  385
Drug interactions 385
Diuretics.  385
Nonsteroidal anti-inflammatory drugs (NSAIDs).  385
Anticholinergic drugs.  385
Preparations, dosage, and administration 385
Preparations and administration.  385
Dosing.  386
Antiepileptic drugs 386
Divalproex sodium (valproate) 386
Carbamazepine 387
Antipsychotic drugs 387
Key points 387
34 Sedative-hypnotic drugs 390
Benzodiazepines 390
Benzodiazepine-like drugs 394
Zolpidem 394
Zaleplon 395
Eszopiclone 395
Ramelteon: A melatonin agonist 395
Barbiturates 397
Management of insomnia 400
Sleep phases 400
Basic principles of management 400
Cause-specific therapy 400
Nondrug therapy 400
Therapy with hypnotic drugs 401
Major hypnotics used for treatment 401
Benzodiazepines 401
Benzodiazepine-like drugs: Zolpidem, zaleplon, and eszopiclone 402
Ramelteon 402
Key points 403
35 Management of anxiety disorders 406
Generalized anxiety disorder 407
Characteristics 407
Treatment 407
Benzodiazepines 407
Buspirone 408
Actions and therapeutic use.  408
Adverse effects.  408
Drug and food interactions.  408
Tolerance, dependence, and abuse.  408
Antidepressants: Venlafaxine, paroxetine, escitalopram, and duloxetine 409
Panic disorder 409
Characteristics 409
Treatment 409
Antidepressants 409
Selective serotonin reuptake inhibitors.  409
Obsessive-compulsive disorder 410
Characteristics 410
Treatment 410
Selective serotonin reuptake inhibitors 410
Social anxiety disorder (social phobia) 412
Characteristics 412
Treatment 412
Post-traumatic stress disorder 414
Characteristics 414
Treatment 414
Key points 414
36 Central nervous system stimulants and attention-deficit/hyperactivity disorder 416
Central nervous system stimulants 416
Amphetamines 416
Methylphenidate and dexmethylphenidate 418
Methylphenidate 418
Preparations, dosage, and administration 419
Methylxanthines 419
Caffeine 420
Dietary sources 420
Mechanism of action 420
Pharmacologic effects 420
Central nervous system.  420
Heart.  420
Blood vessels.  420
Bronchi.  420
Kidney.  420
Reproduction.  420
Pharmacokinetics 420
Therapeutic uses 420
Neonatal apnea.  420
Promoting wakefulness.  421
Attention-deficit/hyperactivity disorder 423
Basic considerations 423
ADHD in children 423
Signs and symptoms 423
Etiology 423
Management overview 423
ADHD in adults 423
Drugs used for ADHD 423
CNS stimulants 423
Nonstimulants 426
Atomoxetine, a norepinephrine uptake inhibitor 426
Description and therapeutic effects.  426
Mechanism of action.  426
Pharmacokinetics.  426
Adverse effects.  426
Drug interactions.  427
Role in ADHD therapy.  427
Alpha2-adrenergic agonists 427
Guanfacine.  427
Key points 428
37 Drug abuse I: Basic considerations 430
Definitions 430
APA diagnostic criteria regarding drugs of abuse 431
Factors that contribute to drug abuse 431
Neurobiology of addiction 433
Principles of addiction treatment 434
The controlled substances act 434
Key points 437
38 Drug abuse II: Alcohol 438
Basic pharmacology of alcohol 438
Alcohol use disorder 443
Drugs for alcohol use disorder 445
Drugs used to facilitate withdrawal 446
Benzodiazepines 446
Adjuncts to benzodiazepines 446
Drugs used to maintain abstinence 446
Disulfiram aversion therapy 446
Therapeutic effects.  446
Mechanism of action.  446
Pharmacologic effects.  446
Patient selection.  447
Patient education.  447
Naltrexone 447
Acamprosate 447
Therapeutic use.  447
Mechanism of action.  447
Pharmacokinetics.  447
Adverse effects and drug interactions.  448
Key points 448
39 Drug abuse III: Nicotine and smoking 450
Basic pharmacology of nicotine 450
Pharmacologic aids to smoking cessation 452
Nicotine replacement therapy 454
Nicotine chewing gum (nicotine polacrilex) 454
Nicotine lozenges (nicotine polacrilex) 454
Nicotine transdermal systems (patches) 455
Nicotine inhaler 455
Nicotine nasal spray 455
Bupropion SR 455
Varenicline 456
Key points 457
40 Drug abuse IV: Major drugs of abuse other than alcohol and nicotine 458
Heroin, oxycodone, and other opioids 458
General CNS depressants 463
Barbiturates 463
Benzodiazepines 465
Psychostimulants 465
Cocaine 465
Methamphetamine 466
Marijuana and related preparations 467
Psychedelics 469
D-lysergic acid diethylamide (LSD) 469
Salvia 470
Mescaline, psilocin, psilocybin, and dimethyltryptamine 471
Dissociative drugs 471
Phencyclidine 471
Chemistry and pharmacokinetics 471
Chemistry.  471
Pharmacokinetics.  471
Mechanism of action 471
Subjective and behavioral effects 471
Effects of low to moderate doses.  471
High-dose (toxic) effects.  471
Managing toxicity.  471
Ketamine 472
Dextromethorphan 472
3,4-methylenedioxymethamphetamine (MDMA, ecstasy) 472
Inhalants 473
Anabolic steroids 473
Key points 474
41 Diuretics 476
Review of renal anatomy and physiology 476
Anatomy 476
Physiology 476
Overview of kidney functions 476
The three basic renal processes 476
Filtration.  476
Reabsorption.  476
Active tubular secretion.  477
Processes of reabsorption that occur at specific sites along the nephron 477
Proximal convoluted tubule.  477
Loop of henle.  477
Distal convoluted tubule (early segment).  477
Distal nephron: Late distal convoluted tubule and collecting duct.  478
Sodium-potassium exchange.  478
Introduction to diuretics 478
How diuretics work 478
Adverse impact on extracellular fluid 479
Classification of diuretics 479
High-ceiling (loop) diuretics 479
Furosemide 479
Mechanism of action 479
Pharmacokinetics 479
Therapeutic uses 479
Adverse effects 479
Hyponatremia, hypochloremia, and dehydration.  479
Hypotension.  480
Hypokalemia.  480
Ototoxicity.  480
Drug interactions 480
Digoxin.  480
Ototoxic drugs.  480
Potassium-sparing diuretics.  480
Thiazides and related diuretics 481
Hydrochlorothiazide 481
Mechanism of action 481
Pharmacokinetics 481
Therapeutic uses 481
Essential hypertension.  481
Edema.  481
Adverse effects 481
Hyponatremia, hypochloremia, and dehydration.  481
Hypokalemia.  481
Use in pregnancy and lactation.  481
Drug interactions 482
Potassium-sparing diuretics 482
Spironolactone 483
42 Agents affecting the volume and ion content of body fluids 488
Disorders of fluid volume and osmolality 488
Volume contraction 488
Isotonic contraction 488
43 Review of hemodynamics 493
Overview of the circulatory system 493
Components of the circulatory system 493
Distribution of blood 493
What makes blood flow? 493
How does blood get back to the heart? 494
Regulation of cardiac output 494
Determinants of cardiac output 494
Control of stroke volume by venous return 495
Starling’s law of the heart 495
Factors that determine venous return 496
Starling’s law and maintenance of systemic-pulmonary balance 496
Regulation of arterial pressure 497
Overview of control systems 497
Steady-state control by the ANS 497
Rapid control by the ANS: The baroreceptor reflex 497
The Renin-Angiotensin-Aldosterone system 497
Renal retention of water 497
Postural hypotension 497
Natriuretic peptides 498
Key points* 498
44 Drugs acting on the Renin-Angiotensin-Aldosterone system 500
Physiology of the Renin-Angiotensin-Aldosterone system 500
Types of angiotensin 500
Actions of angiotensin II 500
Actions of aldosterone 502
Formation of angiotensin II by renin and angiotensin-converting enzyme 502
Renin 502
Regulation of renin release.  502
Angiotensin-converting enzyme (kinase II) 502
Regulation of blood pressure by the Renin-Angiotensin-Aldosterone system 502
Tissue (local) angiotensin II production 502
Angiotensin-converting enzyme inhibitors 503
Angiotensin II receptor blockers 507
Aliskiren, a direct renin inhibitor 509
Aldosterone antagonists 509
Eplerenone 510
Mechanism of action 510
Therapeutic use 510
Hypertension.  510
Heart failure.  510
Adverse effects 510
Hyperkalemia.  510
Drug interactions 510
Key points 511
45 Calcium channel blockers 515
Calcium channels: Physiologic functions and consequences of blockade 515
Vascular smooth muscle 515
Heart 515
Calcium channel blockers: Classification and sites of action 515
Verapamil and diltiazem: Agents that act on vascular smooth muscle and the heart 516
Verapamil 516
Hemodynamic effects 517
Direct effects.  517
Indirect (reflex) effects.  517
Net effect.  517
Pharmacokinetics 517
Therapeutic uses 517
Angina pectoris.  517
Essential hypertension.  517
Cardiac dysrhythmias.  517
Adverse effects 518
Common effects.  518
Cardiac effects.  518
Drug and food interactions 518
Digoxin.  518
Beta-adrenergic blocking agents.  518
Grapefruit juice.  518
Dihydropyridines: Agents that act mainly on vascular smooth muscle 519
Nifedipine 519
Hemodynamic effects 519
Direct effects.  519
Indirect (reflex) effects.  519
Net effect.  520
Therapeutic uses 520
Angina pectoris.  520
Hypertension.  520
Adverse effects 520
Drug interactions 520
Beta-adrenergic blockers.  520
Toxicity 520
Key points 521
46 Vasodilators 524
Basic concepts in vasodilator pharmacology 524
Selectivity of vasodilatory effects 524
Overview of therapeutic uses 524
Adverse effects related to vasodilation 525
Postural hypotension 525
Reflex tachycardia 525
Expansion of blood volume 525
Pharmacology of individual vasodilators 525
Hydralazine 525
Cardiovascular effects 525
Pharmacokinetics 525
Absorption and time course of action.  525
Metabolism.  525
47 Drugs for hypertension 529
Basic considerations in hypertension 529
Classification of blood pressure 529
Types of hypertension 530
Consequences of hypertension 531
Management of chronic hypertension 531
Basic considerations 531
Lifestyle modifications 533
Drug therapy 534
Review of blood pressure control 534
Principal determinants of blood pressure 534
Cardiac output.  534
Peripheral vascular resistance.  534
Systems that help regulate blood pressure 534
Sympathetic baroreceptor reflex.  534
Renin-Angiotensin-Aldosterone system.  534
Renal regulation of blood pressure.  534
Antihypertensive mechanisms: Sites of drug action and effects produced 535
Classes of antihypertensive drugs 537
Diuretics 537
Thiazide diuretics.  537
High-ceiling (loop) diuretics.  537
Potassium-sparing diuretics.  540
Sympatholytics (antiadrenergic drugs) 540
Beta-adrenergic blockers.  540
Alpha1 blockers.  540
Alpha/beta blockers: Carvedilol and labetalol.  540
Centrally acting alpha2 agonists.  540
Adrenergic neuron blockers.  540
Direct-acting vasodilators: Hydralazine and minoxidil 541
Calcium channel blockers 541
Drugs that suppress the RAAS 541
ACE inhibitors.  541
Angiotensin II receptor blockers.  541
Direct renin inhibitors.  541
Aldosterone antagonists.  541
Fundamentals of hypertension drug therapy 541
Treatment algorithm 541
Initial drug selection 543
Patients without compelling indications.  543
Patients with compelling indications.  543
Adding drugs to the regimen 543
Rationale for drug selection.  543
Benefits of multidrug therapy.  543
Dosing 544
Step-down therapy 544
Individualizing therapy 544
Patients with comorbid conditions 544
Renal disease.  544
Diabetes.  544
Patients in special populations 544
African americans.  544
Children and adolescents.  545
The elderly.  545
Minimizing adverse effects 546
Promoting adherence 546
Why adherence is often hard to achieve 546
Ways to promote adherence 546
Patient education.  546
Teach self-monitoring.  546
Minimize side effects.  546
Establish a collaborative relationship.  546
Simplify the regimen.  546
Other measures.  546
Drugs for hypertensive emergencies 547
Drugs for hypertensive disorders of pregnancy 547
Chronic hypertension 547
Preeclampsia and eclampsia 547
Key points 548
48 Drugs for heart failure 551
Pathophysiology of heart failure 551
Overview of drugs used to treat heart failure 553
Diuretics 553
Drugs that inhibit the RAAS 554
ACE inhibitors 554
Hemodynamic benefits.  554
Impact on cardiac remodeling.  555
Adverse effects.  555
Dosage.  555
Angiotensin II receptor blockers 555
Aldosterone antagonists 555
Direct renin inhibitors 556
Beta blockers 556
Digoxin 556
Digoxin, a cardiac glycoside 557
Management of heart failure 562
Stage A 563
Stage B 563
Stage C 563
Drug therapy 563
Diuretics.  563
ACE inhibitors and arbs.  563
Aldosterone antagonists.  563
Beta blockers.  563
Digoxin.  563
Isosorbide dinitrate/hydralazine.  563
Drugs to avoid 564
Device therapy 564
Implanted cardioverter-defibrillators.  564
Cardiac resynchronization.  564
Exercise training 564
Evaluating treatment 564
Stage D 564
Key points 565
49 Antidysrhythmic drugs 568
Introduction to cardiac electrophysiology, dysrhythmias, and the antidysrhythmic drugs 568
Electrical properties of the heart 568
Impulse conduction: Pathways and timing 569
Cardiac action potentials 569
Fast potentials 569
Phase 0.  569
Phase 1.  569
Phase 2.  569
Phase 3.  569
Phase 4.  570
Slow potentials 570
Phase 0.  571
Phases 1, 2, and 3.  571
Phase 4.  571
The electrocardiogram 571
Generation of dysrhythmias 571
Disturbances of automaticity 571
Disturbances of conduction 571
Classification of antidysrhythmic drugs 573
Prodysrhythmic effects of antidysrhythmic drugs 573
Overview of common dysrhythmias and their treatment 574
Supraventricular dysrhythmias 574
Ventricular dysrhythmias 574
Principles of antidysrhythmic drug therapy 575
Pharmacology of the antidysrhythmic drugs 576
Class I: Sodium channel blockers 577
Class IA agents 577
Quinidine 577
Chemistry and source.  577
Effects on the heart.  577
Effects on the ECG.  577
Therapeutic uses.  577
Adverse effects.  577
Diarrhea.  577
Cinchonism.  577
Cardiotoxicity.  577
Arterial embolism.  577
Other adverse effects.  577
Drug interactions.  577
Digoxin.  577
Class IB agents 578
Lidocaine 578
Effects on the heart and ECG.  578
Pharmacokinetics.  578
Antidysrhythmic use.  578
Adverse effects.  578
Preparations, dosage, and administration.  579
Class II: Beta blockers 579
Class III: Potassium channel blockers (drugs that delay repolarization) 580
Amiodarone 580
Oral therapy 580
Therapeutic use.  580
Effects on the heart and ECG.  580
Pharmacokinetics.  580
50 Prophylaxis of coronary heart disease: Drugs that help normalize cholesterol and triglyceride levels 590
Cholesterol 591
Plasma lipoproteins 591
Structure and function of lipoproteins 591
Classes of lipoproteins 591
Very-low-density lipoproteins 592
Low-density lipoproteins 592
High-density lipoproteins 592
LDL cholesterol versus HDL cholesterol 592
Role of LDL cholesterol in atherosclerosis 593
Detection, evaluation, and treatment of high cholesterol: Recommendations from ATP III 593
Cholesterol screening 593
Adults 593
Children and adolescents 593
CHD risk assessment 595
Factors in risk assessment 595
Identifying CHD risk factors.  595
Calculating 10-year CHD risk.  595
Identifying CHD risk equivalents.  597
Identifying an individual’s CHD risk category 597
Final note: Each type of dyslipidemia a patient has contributes independently to CHD risk 597
Treatment of high LDL cholesterol 599
Therapeutic lifestyle changes 599
The TLC diet.  599
Weight control.  599
Exercise.  599
Smoking cessation.  599
Drug therapy 600
Secondary treatment targets 600
Metabolic syndrome 600
High triglycerides 602
Drugs and other products used to improve plasma lipid levels 602
HMG-CoA reductase inhibitors (statins) 603
Beneficial actions 603
Reduction of LDL cholesterol.  603
Elevation of HDL cholesterol.  603
Reduction of triglyceride levels.  603
Nonlipid beneficial cardiovascular actions.  603
Mechanism of cholesterol reduction 604
Clinical trials 604
Therapeutic uses 605
Hypercholesterolemia.  605
Primary and secondary prevention of CV events.  605
Primary prevention in people with normal LDL levels.  605
Post-MI therapy.  605
Diabetes.  605
Potential uses.  605
Pharmacokinetics 605
Adverse effects 606
Myopathy/rhabdomyolysis.  606
Hepatotoxicity.  606
Drug interactions 606
With other lipid-lowering drugs.  606
With drugs that inhibit cyp3a4.  606
Use in pregnancy 607
Preparations, dosage, and administration 607
Drug selection 607
LDL goal.  607
Drug interactions.  607
Kidney function.  607
Safety in asians.  607
Price.  607
Niacin (nicotinic acid) 607
Bile-acid sequestrants 608
Colesevelam 609
Effect on plasma lipoproteins.  609
Pharmacokinetics.  609
Mechanism of action.  609
Therapeutic use.  609
Adverse effects.  609
Drug interactions.  609
Ezetimibe 609
Fibric acid derivatives (fibrates) 610
Gemfibrozil 610
Effect on plasma lipoproteins.  610
Therapeutic use.  610
Adverse effects.  610
Gallstones.  610
Myopathy.  610
Liver injury.  610
Drug interactions.  610
Key points 613
51 Drugs for angina pectoris 617
Determinants of cardiac oxygen demand and oxygen supply 617
Angina pectoris: Pathophysiology and treatment strategy 617
Chronic stable angina (exertional angina) 617
Variant angina (Prinzmetal’s angina, vasospastic angina) 619
Unstable angina 619
Organic nitrates 620
Nitroglycerin 620
Vasodilator actions 620
Mechanism of antianginal effects 620
Stable angina.  620
Variant angina.  620
Pharmacokinetics 620
Absorption.  620
Metabolism.  620
Adverse effects 620
Headache.  620
Orthostatic hypotension.  620
Reflex tachycardia.  621
Drug interactions 621
Hypotensive drugs.  621
Phosphodiesterase type 5 inhibitors.  621
Beta blockers, verapamil, and diltiazem.  621
Tolerance 621
Preparations and routes of administration 621
Sublingual tablets.  621
Sustained-release oral capsules.  622
Transdermal delivery systems.  622
Discontinuing nitroglycerin 623
Summary of therapeutic uses 623
Acute therapy of angina.  623
Sustained therapy of angina.  623
Intravenous therapy.  623
Beta blockers 623
Calcium channel blockers 624
Ranolazine 624
Revascularization therapy: CABG and PCI 624
Summary of treatment measures 625
Guidelines for management of chronic stable angina 625
Drugs used to prevent myocardial infarction and death 625
Antiplatelet drugs.  626
Cholesterol-lowering drugs.  626
Angiotensin-converting enzyme (ACE) inhibitors.  626
Antianginal agents: Drugs used to reduce anginal pain 626
Reduction of risk factors 627
Smoking.  628
High cholesterol.  628
Hypertension.  628
Diabetes.  628
Obesity.  628
Physical inactivity.  628
Management of variant angina 628
Key points 628
52 Anticoagulant, antiplatelet, and thrombolytic drugs 631
Coagulation: Physiology and pathophysiology 631
Overview of drugs for thromboembolic disorders 635
Anticoagulants 635
Heparin and its derivatives: Drugs that activate antithrombin 635
Heparin (unfractionated) 636
Chemistry 636
Mechanism of anticoagulant action 636
Pharmacokinetics 636
Absorption and distribution.  636
Protein and tissue binding.  636
Metabolism and excretion.  636
Time course.  636
Therapeutic uses 636
Adverse effects 636
Hemorrhage.  636
Spinal/epidural hematoma.  636
Heparin-induced thrombocytopenia.  636
Hypersensitivity reactions.  638
Warnings and contraindications 638
Warnings.  638
Contraindications.  638
Drug interactions 638
Protamine sulfate for heparin overdose 638
Laboratory monitoring 638
Unitage and preparations 638
Unitage.  638
Dosage and administration 638
General considerations.  638
Low-molecular-weight heparins 639
Group properties 639
Production.  639
Mechanism of action.  639
Therapeutic use.  639
Pharmacokinetics.  639
Administration, dosing, and monitoring.  639
Adverse effects and interactions.  639
Cost.  640
Individual preparations 640
Enoxaparin.  640
Warfarin, a vitamin K antagonist 641
Direct thrombin inhibitors 645
Dabigatran etexilate 645
Mechanism of action 645
Therapeutic use 645
Atrial fibrillation.  645
Knee or hip replacement.  645
Pharmacokinetics 645
Adverse effects 646
Bleeding.  646
Gastrointestinal disturbances.  646
Drug interactions 646
Rivaroxaban, a direct factor Xa inhibitor 648
Clinical trials 648
Knee and hip replacement patients.  648
Nonvalvular atrial fibrillation patients.  648
Pharmacokinetics 648
Adverse effects 648
Bleeding.  648
Spinal/epidural hematoma.  648
Drug interactions 648
Precautions 648
Renal impairment.  648
Hepatic impairment.  649
Pregnancy.  649
Antiplatelet drugs 649
Thrombolytic (fibrinolytic) drugs 654
Key points 657
53 Management of ST-elevation myocardial infarction 662
Pathophysiology of STEMI 662
Diagnosis of STEMI 662
Management of STEMI 663
Routine drug therapy 663
Oxygen 663
Aspirin 664
Nonaspirin NSAIDs 664
Morphine 664
Beta blockers 664
Nitroglycerin 664
Reperfusion therapy 664
Primary percutaneous coronary intervention 665
Fibrinolytic therapy 665
Adjuncts to reperfusion therapy 665
Heparin 665
Antiplatelet drugs 666
Thienopyridines: Clopidogrel and prasugrel.  666
Glycoprotein (GP) IIb/IIIa inhibitors.  666
Aspirin.  666
Angiotensin-converting enzyme inhibitors and angiotensin II receptor blockers 666
Complications of STEMI 666
Secondary prevention of STEMI 667
Key points 667
54 Drugs for hemophilia 668
Basic considerations 668
Pathophysiology 668
Inheritance pattern 669
Clinical features 669
Overview of therapy 669
Pain management 670
Immunization 670
Preparations used to treat hemophilia 670
Factor VIII concentrates 670
Production methods and product safety 670
Plasma-derived factor VIII.  670
Recombinant factor VIII.  670
Adverse effects: Allergic reactions 671
55 Drugs for deficiency anemias 676
Red blood cell development 676
Iron deficiency 676
Biochemistry and physiology of iron 676
Iron deficiency: Causes, consequences, and diagnosis 678
Oral iron preparations 679
Ferrous iron salts 679
Ferrous sulfate 679
Indications.  679
Adverse effects.  679
GI disturbances.  679
Staining of teeth.  679
Toxicity.  679
Drug interactions.  679
Preparations.  680
Dosage and administration.  680
General considerations.  680
Use in iron deficiency anemia.  680
Prophylactic use.  680
Carbonyl iron 680
Parenteral iron preparations 681
Iron dextran 681
Indications 681
Adverse effects 681
Anaphylactic reactions.  681
Guidelines for treating iron deficiency 682
Vitamin B12 deficiency 682
Biochemistry and physiology of vitamin B12 682
Vitamin B12 deficiency: causes, consequences, and diagnosis 683
Vitamin B12 preparations: cyanocobalamin 684
Guidelines for treating vitamin B12 deficiency 685
Folic acid deficiency 685
Physiology and biochemistry of folic acid 685
Folic acid deficiency: Causes, consequences, and diagnosis 686
Folic acid preparations 686
Guidelines for treating folic acid deficiency 687
Key points 687
56 Hematopoietic agents 691
Hematopoietic growth factors 691
Erythropoietic growth factors 691
Epoetin alfa (erythropoietin) 692
Physiology 692
Therapeutic uses 692
Anemia of chronic renal failure.  692
Chemotherapy-induced anemia.  692
HIV-infected patients taking zidovudine.  692
Anemia in patients facing surgery.  692
Pharmacokinetics 692
Adverse effects and interactions 692
Hypertension.  692
Cardiovascular events.  693
Warnings 693
Excessive dosage.  693
57 Drugs for diabetes mellitus 702
Diabetes mellitus: Basic considerations 702
Insulin 709
Physiology 709
Preparations and administration 711
Sources of insulin 711
Types of insulin 711
Short duration: Rapid acting 711
Insulin lispro.  712
Insulin aspart.  712
Insulin glulisine.  713
Short duration: Slower acting 713
Regular insulin injection.  713
Intermediate duration 714
Neutral protamine hagedorn (NPH) insulin suspension.  714
Insulin detemir.  714
Long duration 714
Insulin glargine.  714
Appearance 714
Concentration 714
Mixing insulins 714
Administration 715
Subcutaneous injection 715
Preparing for injection.  715
Injection sites.  715
Injection devices.  715
Syringe and needle.  715
Pen injectors.  715
Jet injectors.  715
Subcutaneous infusion 716
Portable insulin pumps.  716
Intravenous infusion 716
Storage 716
Therapeutic use 716
Indications 716
Insulin therapy of diabetes 716
Dosage 716
Dosing schedules 717
Conventional therapy.  717
Intensive conventional therapy (ICT).  717
Continuous subcutaneous insulin infusion.  717
Achieving tight glucose control 717
Complications of insulin treatment 718
Hypoglycemia 718
Drug interactions 718
Drugs for type 2 diabetes 718
Oral drugs 719
Biguanides: Metformin 720
Sulfonylureas 721
Thiazolidinediones (glitazones) 723
Pioglitazone 723
Actions and use.  723
Pharmacokinetics.  723
Adverse effects.  723
58 Drugs for thyroid disorders 738
Thyroid physiology 738
Thyroid function tests 740
Thyroid pathophysiology 740
Hypothyroidism 740
Hypothyroidism in adults 740
Clinical presentation.  740
59 Drugs related to hypothalamic and pituitary function 750
Overview of hypothalamic and pituitary endocrinology 750
Growth hormone 751
Physiology 751
Regulation of release 751
Biologic effects 751
Promotion of growth.  751
Promotion of protein synthesis.  752
Effect on carbohydrate metabolism.  752
Pathophysiology 752
Growth hormone deficiency 752
Pediatric.  752
Adult.  752
Growth hormone excess 752
Consequences.  752
Treatment overview.  753
Clinical pharmacology 753
Therapeutic uses 753
Pediatric growth hormone deficiency.  753
Pediatric non–growth-hormone-deficient (NGHD) short stature.  753
Pediatric short stature associated with Prader-Willi syndrome.  753
Growth hormone deficiency in adults.  753
Adverse effects and interactions 753
Hyperglycemia.  753
Neutralizing antibodies.  753
Fatality in PWS patients.  753
Interaction with glucocorticoids.  753
Preparations, dosage, and administration 753
Preparations: Somatropin.  753
Administration.  753
Prolactin 754
Antidiuretic hormone (vasopressin) 755
Key points 757
60 Drugs for disorders of the adrenal cortex 760
Physiology of the adrenocortical hormones 760
Glucocorticoids 760
Physiologic effects 760
Carbohydrate metabolism.  760
Protein metabolism.  760
Fat metabolism.  760
Cardiovascular system.  760
Skeletal muscle.  761
Central nervous system.  761
Stress.  761
Respiratory system in neonates.  761
Regulation of synthesis and secretion 761
Mineralocorticoids 762
Adrenal androgens 762
Pathophysiology of the adrenocortical hormones 762
Adrenal hormone excess 762
Cushing’s syndrome 762
Causes.  762
Clinical presentation.  762
Treatment.  762
Primary hyperaldosteronism 763
Clinical presentation, causes, and diagnosis.  763
61 Estrogens and progestins: Basic pharmacology and noncontraceptive applications 768
The menstrual cycle 768
Estrogens 769
Biosynthesis and elimination 769
Physiologic and pharmacologic effects 770
Effects on primary and secondary sex characteristics of females 770
Metabolic actions 770
Bone.  770
Cholesterol.  770
Blood coagulation.  770
Clinical pharmacology 770
Adverse effects 770
Endometrial hyperplasia and carcinoma.  770
Breast cancer.  770
Ovarian cancer.  771
Cardiovascular events.  771
Nausea.  771
Therapeutic uses 771
Menopausal hormone therapy.  771
Female hypogonadism.  771
Acne.  771
Selective estrogen receptor modulators (SERMs) 771
Progestins 772
Biosynthesis 772
Physiologic and pharmacologic effects 772
Clinical pharmacology 772
Adverse effects 772
Teratogenic effects.  772
Gynecologic effects.  772
Breast cancer.  772
Other adverse effects.  772
Therapeutic uses 772
Menopausal hormone therapy.  772
Menopausal hormone therapy 775
Landmark studies: WHI and HERS 775
Benefits and risks of hormone therapy 776
Benefits of hormone therapy 776
Relief of vasomotor symptoms.  776
Management of urogenital atrophy.  776
Prevention of osteoporosis and related fractures.  776
Cardioprotection.  777
Improved quality of life?  777
Prevention of colorectal cancer?  777
Adverse effects of hormone therapy 777
Cardiovascular events.  777
Endometrial cancer.  778
Breast cancer.  778
Ovarian cancer.  778
Lung cancer.  778
Gallbladder disease.  778
Dementia.  778
Urinary incontinence.  779
Minor adverse effects.  779
Warnings 779
Recommendations on hormone therapy use 779
General recommendations 779
Use for approved indications 779
Treatment of vasomotor symptoms.  780
Treatment of symptoms of vulvar and vaginal atrophy.  780
Prevention of osteoporosis.  780
Inappropriate uses: Attempted prevention of heart disease and dementia 780
Heart disease.  780
Alzheimer’s disease.  781
Safety in younger women who don’t have a uterus 781
Discontinuing hormone therapy 781
Open questions 782
Drug products for hormone therapy 782
Preparations 782
Dosing schedules 783
Key points 783
62 Birth control 786
Effectiveness of birth control methods 786
Selecting a birth control method 787
Oral contraceptives 788
Combination oral contraceptives 788
Mechanism of action 788
Components 788
Estrogens.  788
Progestins.  788
Effectiveness 788
Overall safety 789
Adverse effects 789
Thromboembolic disorders.  789
Cancer.  790
Hypertension.  790
Abnormal uterine bleeding.  790
Use in pregnancy and lactation.  790
Stroke in women with migraine.  790
Benign hepatic adenoma.  790
Effects related to estrogen or progestin imbalance.  790
Noncontraceptive benefits of OCs 791
Drug interactions 791
Drugs and herbs that reduce the effects of OCs.  791
Drugs whose effects are reduced by OCs.  791
Drugs whose effects are increased by OCs.  791
Preparations 791
Dosing schedules 794
28-day-cycle schedules.  794
Extended-cycle and continuous schedules.  794
What to do in the event of missed doses 794
Progestin-only oral contraceptives 794
Combination contraceptives with novel delivery systems 795
Long-acting contraceptives 795
Subdermal etonogestrel implant 795
Depot medroxyprogesterone acetate 796
Key points 801
63 Drug therapy of infertility 805
Infertility: Causes and treatment strategies 805
Female infertility 805
Anovulation and failure of follicular maturation 805
Unfavorable cervical mucus 805
Hyperprolactinemia 805
Endometriosis 806
Polycystic ovary syndrome 806
Male infertility 806
Hypogonadotropic hypogonadism 806
Erectile dysfunction 806
Idiopathic male infertility 806
Drugs used to treat female infertility 806
Drugs for controlled ovarian stimulation 806
Clomiphene 806
Therapeutic use.  806
Mechanism of fertility promotion.  806
Monitoring.  807
Adverse effects.  807
Menotropins 808
Therapeutic actions and uses.  808
Anovulatory women.  808
Ovulatory women.  808
Men.  808
64 Drugs that affect uterine function 813
Drugs for preterm labor 813
Drugs used to suppress preterm labor 813
Control of myometrial contraction and mechanisms of tocolytic drug action 813
Specific tocolytic drugs 814
Terbutaline, a beta2-adrenergic agonist 814
Nifedipine, a calcium channel blocker 814
Indomethacin, a cyclooxygenase inhibitor 815
Drugs used to prevent preterm labor 816
Hydroxyprogesterone caproate 816
Drugs for cervical ripening and induction of labor 817
Drugs for postpartum hemorrhage 819
Drugs for menorrhagia 821
Key points 822
65 Androgens 824
Testosterone 824
Biosynthesis and secretion 824
Mechanism of action 825
Physiologic and pharmacologic effects 825
Effects on sex characteristics in males 825
Pubertal transformation.  825
Spermatogenesis.  825
Effects on sex characteristics in females 825
Anabolic effects 825
Erythropoietic effects 825
Clinical pharmacology of the androgens 825
Classification 825
Therapeutic uses 825
Adverse effects 826
Androgen (anabolic steroid) abuse by athletes 830
Key points 832
66 Drugs for erectile dysfunction and benign prostatic hyperplasia 834
Erectile dysfunction 834
Physiology of erection 834
Oral drugs for ED: PDE5 inhibitors 834
Sildenafil 834
Mechanism of action 835
Pharmacokinetics 835
Sexual benefits 835
In men with ED.  835
In men without ED.  835
In women.  835
Adverse effects 835
Hypotension.  835
Priapism.  837
Nonarteritic ischemic optic neuropathy (NAION).  837
Sudden hearing loss.  837
Other adverse effects.  837
Drug interactions 837
Nitrates.  837
Alpha blockers.  837
Inhibitors of CYP3A4.  837
Is sildenafil safe for men with CHD? 837
Benign prostatic hyperplasia 839
Pathophysiology and overview of treatment 839
Drug therapy of BPH 839
Key points 842
67 Review of the immune system 844
Introduction to the immune system 844
Natural immunity versus specific acquired immunity 844
Cell-mediated immunity versus antibody-mediated (humoral) immunity 844
Introduction to cells of the immune system 844
Antibodies 846
Antigens 847
Characteristic features of immune responses 848
Phases of the immune response 848
Major histocompatibility complex molecules 848
Cytokines, lymphokines, and monokines 849
Antibody-mediated (humoral) immunity 849
Production of antibodies 849
Overview of antibody production 849
Specific cellular events in antibody production 849
B cells.  849
Antigen-presenting cells.  850
Helper T cells (CD4 cells).  850
Antibody effector mechanisms 851
Opsonization of bacteria 851
Activation of the complement system 851
Neutralization of viruses and bacterial toxins 851
Cell-mediated immunity 851
Delayed-type hypersensitivity 851
Cytolytic T lymphocytes 852
Key points 853
68 Childhood immunization 855
General considerations 855
Definitions 855
Public health impact of immunization 856
Reporting vaccine-preventable diseases 856
Immunization records 857
Adverse effects of immunization 857
Vaccine information statements 858
Childhood immunization schedule 858
Target diseases 858
Measles, mumps, and rubella 858
Diphtheria, tetanus, and pertussis 858
Poliomyelitis 859
Haemophilus influenzae type b 859
Varicella (chickenpox) 859
Hepatitis B 859
Hepatitis A 860
Pneumococcal infection 860
Meningococcal infection 860
Influenza 860
Rotavirus gastroenteritis 860
Genital human papillomavirus infection 860
Specific vaccines and toxoids 861
Measles, mumps, and rubella virus vaccine (MMR) 861
Diphtheria and tetanus toxoids and acellular pertussis vaccine 863
Poliovirus vaccine 864
Haemophilus influenzae type b conjugate vaccine 864
Varicella virus vaccine 865
Hepatitis B vaccine 866
Hepatitis A vaccine 866
Pneumococcal conjugate vaccine 866
Meningococcal conjugate vaccine 867
Influenza vaccine 868
Rotavirus vaccine 868
Human papillomavirus vaccine 869
Quadrivalent HPV vaccine: Gardasil 869
Composition.  869
Indications.  869
Cancers and precancerous lesions in females.  869
Genital warts in females and males.  869
Anal cancer in females and males.  869
Efficacy.  869
Is a pap test still needed?  869
Safety.  869
Who should be vaccinated?  870
Females: Routine vaccination.  870
Males: Routine vaccination.  870
Females and males: Catch-up vaccination.  870
69 Immunosuppressants 874
Calcineurin inhibitors 874
Cyclosporine 874
Therapeutic uses 874
Pharmacokinetics 875
Adverse effects 875
Nephrotoxicity.  875
Infection.  875
Drug and food interactions 875
Drugs that can decrease cyclosporine levels.  875
Drugs that can increase cyclosporine levels.  875
Nephrotoxic drugs.  875
Grapefruit juice.  875
Repaglinide.  875
Tacrolimus 876
Glucocorticoids 877
Cytotoxic drugs 878
Antibodies 878
Key points 879
70 Antihistamines 881
Histamine 881
Distribution, synthesis, storage, and release 881
Physiologic and pharmacologic effects 881
Effects of H1 stimulation 881
Vasodilation.  881
Increased capillary permeability.  881
Bronchoconstriction.  881
CNS effects.  882
Other effects.  882
Effects of H2 stimulation 882
Role of histamine in allergic responses 882
The two types of antihistamines: H1 antagonists and H2 antagonists 882
H1 antagonists I: basic pharmacology 882
H1 antagonists II: preparations 885
First-generation H1 antagonists 885
Second-generation (nonsedating) H1 antagonists 886
Key points 887
71 Cyclooxygenase inhibitors: Nonsteroidal anti-inflammatory drugs and acetaminophen 889
Mechanism of action 889
Classification of cyclooxygenase inhibitors 890
First-generation NSAIDs 890
Aspirin 890
Chemistry 890
Mechanism of action 891
Pharmacokinetics 891
Absorption.  891
Metabolism.  891
Distribution.  891
Excretion.  891
Plasma drug levels.  891
Therapeutic uses 891
Suppression of inflammation.  891
Analgesia.  892
Reduction of fever.  892
Dysmenorrhea.  892
Suppression of platelet aggregation.  892
Cancer prevention.  892
Colorectal cancer.  892
Other cancers.  893
Adverse effects 893
Gastrointestinal effects.  893
Bleeding.  893
Renal impairment.  894
Salicylism.  894
Reye’s syndrome.  894
Adverse effects associated with use during pregnancy.  894
Hypersensitivity reactions.  894
Cardiovascular events.  894
Erectile dysfunction.  894
Summary of precautions and contraindications 894
Drug interactions 895
Anticoagulants: Warfarin, heparin, and others.  895
Glucocorticoids.  895
Alcohol.  895
Nonaspirin NSAIDs.  895
ACE inhibitors and ARBs.  895
Vaccines.  895
Acute poisoning 895
Signs and symptoms.  895
Nonaspirin first-generation NSAIDs 896
Second-generation NSAIDs (COX-2 inhibitors, coxibs) 900
Celecoxib 900
Therapeutic use 900
Mechanism of action 901
Adverse effects 901
Gastroduodenal ulceration.  901
Cardiovascular events.  901
Renal impairment.  901
Sulfonamide allergy.  901
Use in pregnancy.  901
Drug interactions 901
Warfarin.  901
Acetaminophen 902
AHA statement on COX inhibitors in chronic pain 904
Key points 905
72 Glucocorticoids in nonendocrine disorders 909
Review of glucocorticoid physiology 909
Physiologic effects 909
Control of synthesis and secretion 910
Pharmacology of the glucocorticoids 910
Molecular mechanism of action 910
Pharmacologic effects 910
Effects on metabolism and electrolytes 910
Anti-inflammatory and immunosuppressant effects 911
Therapeutic uses in nonendocrine disorders 911
Adverse effects 912
Use in pregnancy and lactation 914
Drug interactions 914
Summary of precautions and contraindications 914
Adrenal suppression 914
Preparations and routes of administration 915
Preparations 915
Routes of administration 915
Dosage 915
General guidelines for dosing 915
Alternate-day therapy 915
Key points 916
73 Drug therapy of rheumatoid arthritis 919
Pathophysiology of rheumatoid arthritis 919
Overview of therapy 919
Nondrug measures 919
Drug therapy 920
Classes of antiarthritic drugs 920
Drug selection 920
Nonsteroidal anti-inflammatory drugs 921
Glucocorticoids 922
Nonbiologic (traditional) DMARDs 922
Methotrexate 922
Sulfasalazine 922
Biologic DMARDs 923
Tumor necrosis factor antagonists 923
Etanercept 924
Mechanism of action.  924
Therapeutic uses.  924
Adverse effects.  924
Mild effects.  924
Serious infections.  924
Severe allergic reactions.  925
Heart failure.  925
Cancer.  925
Hematologic disorders.  925
Liver injury.  925
Central nervous system (CNS) demyelinating disorders.  925
Drug interactions.  925
Key points 928
74 Drug therapy of gout 930
Pathophysiology of gout 930
Overview of drug therapy 930
Drugs for acute gouty arthritis 930
Nonsteroidal anti-inflammatory drugs 930
Glucocorticoids 930
Drugs for hyperuricemia (urate-lowering therapy) 931
Xanthine oxidase inhibitors: Allopurinol and febuxostat 931
Allopurinol 932
Therapeutic uses.  932
Mechanism of action.  932
Probenecid, a uricosuric agent 933
Pegloticase, a recombinant form of uric acid oxidase 933
Key points 933
75 Drugs affecting calcium levels and bone mineralization 935
Calcium physiology 935
Drugs for disorders involving calcium 938
Calcium salts 938
Oral calcium salts 938
Therapeutic uses.  938
Adverse effects.  938
Vitamin D 939
Physiologic actions 939
Health benefits 939
Sources and daily requirements 939
Sources.  939
Requirements.  939
Vitamin D deficiency 939
Calcitonin-salmon 941
Actions 941
Therapeutic uses 941
Osteoporosis.  941
Bisphosphonates 941
Alendronate 942
Pharmacokinetics.  942
Mechanism of action.  942
Therapeutic use.  942
Osteoporosis in postmenopausal women.  942
Osteoporosis in men.  942
Glucocorticoid-induced osteoporosis.  942
Paget’s disease of bone.  942
Adverse effects.  942
Esophagitis.  943
Atypical femoral fractures.  943
Administration.  943
Zoledronate 944
Actions and uses.  944
Adverse effects.  945
Drug interactions.  945
Raloxifene 945
Mechanism of action 945
Therapeutic uses 946
Postmenopausal osteoporosis.  946
Breast cancer.  946
Adverse effects and interactions 946
Venous thromboembolism.  946
Fetal harm.  946
Hot flushes.  946
Comparison with estrogen 946
Teriparatide 946
Denosumab 947
Therapeutic uses 947
Clinical trials 947
Osteoporosis in postmenopausal women.  947
Prevention of skeletal-related events in patients with bone metastases.  948
Mechanism of action 948
Pharmacokinetics 948
Adverse effects 948
Hypocalcemia.  948
Serious infections.  948
Dermatologic reactions.  948
Osteonecrosis of the jaw.  948
Cinacalcet 948
Osteoporosis 949
General considerations 949
Bone mass 949
Primary prevention: Calcium, vitamin D, and lifestyle 950
Diagnosing osteoporosis and assessing fracture risk 950
Who should be treated? 950
Treating osteoporosis in women 950
Antiresorptive therapy 951
Estrogen.  951
Raloxifene.  951
Bisphosphonates.  951
Alendronate.  951
Risedronate, ibandronate, and zoledronate.  952
Calcitonin-salmon.  952
Denosumab.  952
Bone-forming therapy: Teriparatide 952
Treating osteoporosis in men 952
Key points 953
76 Drugs for asthma 958
Basic considerations 958
Pathophysiology of asthma 958
Overview of drugs for asthma 958
Administering drugs by inhalation 959
Anti-inflammatory drugs 960
Glucocorticoids 960
Bronchodilators 965
Beta2-adrenergic agonists 965
Glucocorticoid/laba combinations 968
Management of asthma 969
Key points 973
77 Drugs for allergic rhinitis, cough, and colds 977
Drugs for allergic rhinitis 977
Intranasal glucocorticoids 977
Antihistamines 978
Oral antihistamines 978
Intranasal antihistamines 978
Intranasal cromolyn sodium 979
Sympathomimetics (decongestants) 979
Actions and uses 979
Adverse effects 979
Rebound congestion.  979
Central nervous system stimulation.  980
Cardiovascular effects.  980
Abuse.  980
Factors in topical administration 981
General considerations.  981
Drops.  981
Sprays.  981
Summary of contrasts between oral and topical agents 981
Comparison of phenylephrine, ephedrine, and pseudoephedrine 981
Drugs for cough 982
Antitussives 982
Opioid antitussives 982
Codeine.  982
Nonopioid antitussives 982
Dextromethorphan.  982
Cold remedies: Combination preparations 983
Key points 984
78 Drugs for peptic ulcer disease 985
Pathogenesis of peptic ulcers 985
Defensive factors 985
Aggressive factors 985
Summary 986
Overview of treatment 986
Drug therapy 986
Classes of antiulcer drugs 986
Drug selection 987
Helicobacter pylori–associated ulcers.  987
NSAID-induced ulcers.  987
Prophylaxis.  987
Treatment.  987
Evaluation 987
Nondrug therapy 988
Antibacterial drugs 988
Tests for helicobacter pylori 988
Antibiotics employed 988
Antibiotic regimens 988
Histamine2 receptor antagonists 989
Cimetidine 989
Mechanism of action 989
Pharmacokinetics 989
Therapeutic uses 990
Gastric and duodenal ulcers.  990
Gastroesophageal reflux disease (GERD).  990
Zollinger-Ellison syndrome.  990
Aspiration pneumonitis.  990
Heartburn, acid indigestion, and sour stomach.  990
Adverse effects 990
Antiandrogenic effects.  990
CNS effects.  990
Pneumonia.  990
Drug interactions 991
Interactions related to inhibition of drug metabolism.  991
Antacids.  991
Ranitidine 991
Proton pump inhibitors 992
Omeprazole 992
Other antiulcer drugs 994
Sucralfate 994
Misoprostol 995
Antacids 995
Beneficial actions 995
Key points 997
79 Laxatives 1001
General considerations 1001
Basic pharmacology of laxatives 1003
Bulk-forming laxatives 1003
Surfactant laxatives 1003
Stimulant laxatives 1004
Osmotic laxatives 1005
Laxative salts 1005
Actions and uses.  1005
Preparations.  1005
Adverse effects.  1005
Polyethylene glycol 1005
Other laxatives 1005
Lubiprostone 1005
Bowel cleansing products for colonoscopy 1006
Polyethylene glycol–electrolyte solutions 1006
Sodium phosphate products 1007
Laxative abuse 1007
Key points 1007
80 Other gastrointestinal drugs 1009
Antiemetics 1009
The emetic response 1009
Antiemetic drugs 1010
Serotonin receptor antagonists 1010
Ondansetron.  1010
Glucocorticoids 1011
Substance p/neurokinin1 antagonists 1012
Aprepitant.  1012
Actions and use.  1012
Pharmacokinetics.  1012
Adverse effects.  1012
Drug interactions.  1012
Benzodiazepines 1012
Dopamine antagonists 1012
Phenothiazines.  1012
Butyrophenones.  1012
Metoclopramide.  1013
Cannabinoids 1013
Therapeutic uses.  1013
Adverse effects and drug interactions.  1013
Abuse potential.  1013
Chemotherapy-induced nausea and vomiting 1013
Nausea and vomiting of pregnancy 1013
Drugs for motion sickness 1014
Antidiarrheal agents 1014
Nonspecific antidiarrheal agents 1015
Opioids 1015
Diphenoxylate.  1015
Loperamide.  1015
Management of infectious diarrhea 1016
Drugs for irritable bowel syndrome 1016
Nonspecific drugs 1017
IBS-specific drugs 1017
Alosetron 1017
Indications.  1017
Mechanism of action and clinical effects.  1017
Pharmacokinetics.  1017
Drug interactions.  1017
Adverse effects and contraindications.  1017
Risk management program.  1017
Drugs for inflammatory bowel disease 1019
Prokinetic agents 1021
Palifermin 1022
Key points 1024
81 Vitamins 1025
Basic considerations 1025
Dietary reference intakes 1025
Classification of vitamins 1025
Should we take multivitamin supplements? 1026
Fat-soluble vitamins 1026
Vitamin A (retinol) 1026
Vitamin D 1027
Vitamin E (alpha-tocopherol) 1027
Vitamin K 1031
Water-soluble vitamins 1032
Vitamin C (ascorbic acid) 1032
Niacin (nicotinic acid) 1032
Riboflavin (vitamin B2) 1033
Thiamin (vitamin B1) 1033
Pyridoxine (vitamin B6) 1033
Cyanocobalamin (vitamin B12) and folic acid 1034
Key points 1035
82 Drugs for weight loss 1036
Assessment of weight-related health risk 1036
Overview of obesity treatment 1038
Weight-loss drugs for long-term use 1039
Orlistat, a lipase inhibitor 1039
Actions and use 1039
Adverse effects 1040
Gastrointestinal effects.  1040
Possible liver damage.  1040
Other adverse effects.  1040
Contraindications.  1040
Drug and nutrient interactions 1040
Reduced absorption of vitamins.  1040
Warfarin.  1040
Levothyroxine.  1040
Key points 1043
83 Basic principles of antimicrobial therapy 1044
Selective toxicity 1044
Classification of antimicrobial drugs 1045
Acquired resistance to antimicrobial drugs 1046
Microbial mechanisms of drug resistance 1046
Mechanisms by which resistance is acquired 1048
Relationships between antibiotic use and emergence of drug-resistant microbes 1048
Suprainfection (superinfection) 1048
Delaying the emergence of resistance in hospitals 1049
Selection of antibiotics 1051
Empiric therapy prior to completion of laboratory tests 1051
Identifying the infecting organism 1051
Determining drug susceptibility 1051
Host factors that modify drug choice, route of administration, or dosage 1054
Host defenses 1054
Site of infection 1055
Other host factors 1055
Dosage size and duration of treatment 1055
Therapy with antibiotic combinations 1055
Antimicrobial effects of antibiotic combinations 1055
Indications for antibiotic combinations 1056
Disadvantages of antibiotic combinations 1056
Prophylactic use of antimicrobial drugs 1056
Misuses of antimicrobial drugs 1057
Monitoring antimicrobial therapy 1057
Key points 1058
84 Drugs that weaken the bacterial cell wall I: Penicillins 1059
Introduction to the penicillins 1059
Mechanism of action 1059
Mechanisms of bacterial resistance 1059
The gram-negative cell envelope 1059
Penicillinases (beta-lactamases) 1060
Altered penicillin-binding proteins 1060
Chemistry 1060
Classification 1061
Properties of individual penicillins 1061
Penicillin G 1061
Antimicrobial spectrum 1061
Pharmacokinetics 1062
Absorption.  1062
Oral.  1062
Intramuscular.  1062
Intravenous.  1062
Distribution.  1062
Metabolism and excretion.  1062
Side effects and toxicities 1063
Penicillin allergy 1063
General considerations.  1063
Types of allergic reactions.  1063
Development of penicillin allergy.  1064
Skin tests for penicillin allergy.  1064
Management of patients with a history of penicillin allergy.  1064
Drug interactions 1064
Aminoglycosides.  1064
Penicillinase-resistant penicillins (antistaphylococcal penicillins) 1064
Broad-spectrum penicillins (aminopenicillins) 1065
Ampicillin 1065
Amoxicillin 1067
Extended-spectrum penicillins (antipseudomonal penicillins) 1067
Penicillins combined with a beta-lactamase inhibitor 1067
Key points 1068
85 Drugs that weaken the bacterial cell wall II: cephalosporins, carbapenems, vancomycin, telavancin, aztreonam, teicoplanin, and fosfomycin 1070
Cephalosporins 1070
Carbapenems 1075
Imipenem 1075
Other inhibitors of cell wall synthesis 1076
Vancomycin 1076
Key points 1080
86 Bacteriostatic inhibitors of protein synthesis: tetracyclines, macrolides, and others 1083
Tetracyclines 1083
Macrolides 1086
Erythromycin 1086
Mechanism of action 1086
Acquired resistance 1086
Antimicrobial spectrum 1086
Therapeutic uses 1086
Pharmacokinetics 1087
Absorption and bioavailability.  1087
Distribution.  1087
Elimination.  1087
Adverse effects 1087
Gastrointestinal effects.  1087
QT prolongation and sudden cardiac death.  1087
Drug interactions 1087
Other bacteriostatic inhibitors of protein synthesis 1088
Clindamycin 1088
Mechanism of action 1088
Antimicrobial spectrum 1088
Therapeutic use 1088
87 Aminoglycosides: bactericidal inhibitors of protein synthesis 1095
Basic pharmacology of the aminoglycosides 1095
Properties of individual aminoglycosides 1100
Gentamicin 1100
Therapeutic use 1100
Adverse effects and interactions 1100
Tobramycin 1100
Amikacin 1100
Key points 1101
88 Sulfonamides and trimethoprim 1103
Sulfonamides 1103
Basic pharmacology 1103
Chemistry 1103
Mechanism of action 1103
Therapeutic uses 1103
Urinary tract infections.  1103
Adverse effects 1104
Hypersensitivity reactions.  1104
Hematologic effects.  1105
Kernicterus.  1105
Renal damage from crystalluria.  1105
Drug interactions 1105
Metabolism-related interactions.  1105
Cross-hypersensitivity.  1105
Sulfonamide preparations 1105
Systemic sulfonamides 1105
Sulfamethoxazole.  1105
Trimethoprim 1106
Trimethoprim/sulfamethoxazole 1106
Key points 1108
89 Drug therapy of urinary tract infections 1111
Organisms that cause urinary tract infections 1111
Specific urinary tract infections and their treatment 1111
Acute cystitis 1111
Acute uncomplicated pyelonephritis 1112
Complicated urinary tract infections 1113
Recurrent urinary tract infection 1113
Acute bacterial prostatitis 1113
Urinary tract antiseptics 1113
Nitrofurantoin 1114
Mechanism of action 1114
Antimicrobial spectrum 1114
Therapeutic use 1114
Adverse effects 1114
Gastrointestinal effects.  1114
Pulmonary reactions.  1114
Hematologic effects.  1114
Peripheral neuropathy.  1114
Hepatotoxicity.  1114
Birth defects.  1114
CNS effects.  1114
Key points 1115
90 Antimycobacterial agents: Drugs for tuberculosis, leprosy, and complex infection 1116
Drugs for tuberculosis 1116
Clinical considerations 1116
Pathogenesis 1116
Primary infection 1116
Reactivation 1117
Diagnosis and treatment of active tuberculosis 1117
Diagnosis 1117
Drug resistance 1117
The prime directive: Always treat tuberculosis with two or more drugs 1117
Determining drug sensitivity 1118
Treatment regimens 1118
Drug-sensitive tuberculosis.  1118
Isoniazid- or rifampin-resistant tuberculosis.  1118
Multidrug-resistant TB and extensively drug-resistant TB.  1118
Patients with TB plus HIV infection.  1118
Duration of treatment 1119
Promoting adherence: Directly observed therapy combined with intermittent dosing 1119
Evaluating treatment 1119
Diagnosis and treatment of latent tuberculosis 1119
Who should be tested for latent tuberculosis? 1119
How do we test for latent tuberculosis? 1120
Tuberculin skin test.  1120
Interferon gamma release assays.  1120
How do we treat latent tuberculosis? 1121
Isoniazid.  1121
Isoniazid plus rifapentine.  1121
Pharmacology of individual antituberculosis drugs 1121
Isoniazid 1121
Antimicrobial spectrum and mechanism of action 1121
Resistance 1122
Therapeutic use 1122
Adverse effects 1122
Hepatotoxicity.  1122
Peripheral neuropathy.  1122
Drug interactions 1122
Interactions from inhibiting drug metabolism.  1122
Alcohol, rifampin, rifapentine, rifabutin, and pyrazinamide.  1122
Rifampin 1123
Antimicrobial spectrum 1123
Mechanism of action and bacterial resistance 1123
Pharmacokinetics 1123
Absorption and distribution.  1123
Elimination.  1123
Therapeutic use 1123
Tuberculosis.  1123
Leprosy.  1123
Adverse effects 1123
Hepatotoxicity.  1123
Discoloration of body fluids.  1123
Drug interactions 1123
Accelerated metabolism of other drugs.  1123
Isoniazid and pyrazinamide.  1123
Pyrazinamide 1124
Antimicrobial activity and therapeutic use 1124
Adverse effects and interactions 1124
Hepatotoxicity.  1124
Nongouty polyarthralgias.  1124
Ethambutol 1125
Antimicrobial action 1125
Therapeutic use 1125
Adverse effects 1125
Optic neuritis.  1125
Key points 1128
91 Miscellaneous antibacterial drugs: Fluoroquinolones, metronidazole, daptomycin, rifampin, rifaximin, bacitracin, and polymyxins 1131
Fluoroquinolones 1131
Ciprofloxacin 1131
Mechanism of action 1131
Therapeutic uses 1131
Adverse effects 1132
Drug and food interactions 1132
Cationic compounds.  1132
Elevation of drug levels.  1132
Additional antibacterial drugs 1133
Metronidazole 1133
Daptomycin 1134
Key points 1135
92 Antifungal agents 1137
Drugs for systemic mycoses 1137
Amphotericin B, a polyene antibiotic 1137
Mechanism of action 1138
Microbial susceptibility and resistance 1138
Therapeutic uses 1138
Pharmacokinetics 1138
Absorption and distribution.  1138
Adverse effects 1138
Infusion reactions.  1138
Nephrotoxicity.  1138
Hypokalemia.  1138
Hematologic effects.  1139
Drug interactions 1139
Nephrotoxic drugs.  1139
Flucytosine.  1139
Azoles 1139
Itraconazole 1139
Mechanism of action.  1139
Therapeutic use.  1139
Adverse effects.  1139
Cardiac suppression.  1139
Liver injury.  1139
Drug interactions.  1139
Inhibition of hepatic drug-metabolizing enzymes.  1139
Drugs that raise gastric pH.  1140
Flucytosine, a pyrimidine analog 1143
Drugs for superficial mycoses 1143
Overview of drug therapy 1143
Dermatophytic infections (ringworm) 1143
Tinea pedis.  1143
Tinea corporis.  1143
Tinea cruris.  1144
Tinea capitis.  1144
Candidiasis 1144
Vulvovaginal candidiasis.  1144
Oral candidiasis.  1144
Onychomycosis (fungal infection of the nails) 1144
Oral therapy.  1145
Topical therapy with ciclopirox.  1145
Azoles 1145
Clotrimazole 1145
Therapeutic uses.  1145
Adverse effects.  1145
Griseofulvin 1146
Polyene antibiotics 1147
Nystatin 1147
Actions, uses, and adverse effects.  1147
Key points 1147
93 Antiviral agents I: Drugs for non-HIV viral infections 1150
Drugs for infection with herpes simplex viruses and varicella-zoster virus 1151
Drugs for cytomegalovirus infection 1153
Drugs for hepatitis 1156
Hepatitis C 1156
Interferon alfa 1156
Ribavirin (oral) 1157
Protease inhibitors: Boceprevir and telaprevir 1158
Boceprevir 1158
Therapeutic use.  1158
Mechanism of action.  1159
Pharmacokinetics.  1159
Adverse effects.  1159
Effect in pregnancy.  1159
Drug interactions.  1159
Hepatitis B 1161
Interferon alfa 1161
Nucleoside analogs 1162
Lamivudine 1162
Drugs for influenza 1163
Key points 1168
94 Antiviral agents II: Drugs for HIV infection and related opportunistic infections 1170
Pathophysiology 1171
Characteristics of HIV 1171
Target cells 1171
Structure of HIV 1171
Replication cycle of HIV 1171
Replication rate 1173
Mutation and drug resistance 1173
Transmission of HIV 1173
Clinical course of HIV infection 1173
Classification of antiretroviral drugs 1174
Nucleoside/nucleotide reverse transcriptase inhibitors 1174
Zidovudine 1174
Mechanism of antiviral action 1174
Therapeutic use 1174
Adverse effects 1174
Anemia and neutropenia from bone marrow suppression.  1174
Lactic acidosis with hepatic steatosis.  1175
Drug interactions 1176
Non-nucleoside reverse transcriptase inhibitors 1180
Efavirenz 1180
Protease inhibitors 1184
Group properties 1184
Adverse effects 1184
Hyperglycemia/diabetes.  1184
Fat maldistribution.  1184
Hyperlipidemia.  1184
Increased bleeding in people with hemophilia.  1184
Reduced bone mineral density.  1184
Elevation of serum transaminases.  1184
Drug interactions 1185
P450 inhibitors.  1185
P450 inducers.  1185
P450 substrates.  1185
Protease inhibitor combinations: Ritonavir boosting.  1185
Herb interactions 1185
St. John’s wort.  1185
Garlic.  1185
Lopinavir/ritonavir 1185
Raltegravir, an integrase strand transfer inhibitor 1193
Enfuvirtide, an HIV fusion inhibitor 1194
Maraviroc, a CCR5 antagonist 1195
Management of HIV infection 1195
Screening and diagnosis 1196
Laboratory tests 1196
CD4 T-cell counts 1196
Viral load (plasma HIV RNA) 1196
HIV drug resistance 1197
HLA-B*5701 screening 1197
CCR5 tropism 1198
Therapeutic drug monitoring 1198
Treatment of adult and adolescent patients 1198
Symptomatic HIV disease 1198
Chronic asymptomatic HIV disease 1199
Acute HIV disease 1200
Changing the regimen 1200
Treatment failure.  1201
Drug toxicity.  1201
Promoting patient adherence 1201
Patient- and medication-related strategies 1201
Clinician- and healthcare team–related strategies 1201
Treatment of infants and young children 1202
Treatment of pregnant patients 1202
Basic principles 1202
Mitochondrial toxicity from NRTIs 1202
Preconception counseling and care 1203
Preventing HIV infection with drugs 1203
Treatment as prevention 1203
Pre-exposure prophylaxis 1203
Postexposure prophylaxis 1204
Nonoccupational postexposure prophylaxis 1204
Occupational postexposure prophylaxis 1204
Preventing perinatal HIV transmission 1204
Prophylaxis and treatment of opportunistic infections 1204
HIV vaccines 1208
Keeping current 1209
Key points 1209
95 Drug therapy of sexually transmitted diseases 1218
Chlamydia trachomatis infections 1218
Gonococcal infections 1221
Nongonococcal urethritis 1222
Pelvic inflammatory disease 1222
Acute epididymitis 1223
Syphilis 1223
Acquired immunodeficiency syndrome 1223
Bacterial vaginosis 1223
Trichomoniasis 1224
Chancroid 1224
Herpes simplex virus infections 1224
Proctitis 1224
Venereal warts 1225
Key points 1225
96 Antiseptics and disinfectants 1226
General considerations 1226
Properties of individual antiseptics and disinfectants 1227
Alcohols 1227
Ethanol 1227
Aldehydes 1227
Glutaraldehyde 1227
Iodine compounds: Iodine solution and iodine tincture 1228
Chlorine compounds 1228
Oxychlorosene sodium 1228
Miscellaneous agents 1229
Chlorhexidine 1229
Hand hygiene for healthcare workers 1230
Specific CDC hand-hygiene recommendations 1230
Indications for hand washing and hand antisepsis 1230
Hand-hygiene technique 1231
Surgical hand antisepsis 1231
Other aspects of hand hygiene 1232
Administrative measures regarding hand hygiene 1232
Key points 1232
97 Anthelmintics 1233
Key points 1237
98 Antiprotozoal drugs I: Antimalarial agents 1238
Life cycle of the malaria parasite 1238
Types of malaria 1238
Vivax malaria 1239
Falciparum malaria 1239
Principles of antimalarial therapy 1240
Therapeutic objectives 1240
Drug selection 1240
Pharmacology of the major antimalarial drugs 1241
Chloroquine 1241
Primaquine 1242
Quinine 1242
Quinidine gluconate 1243
Mefloquine 1243
Artemisinin derivatives 1243
Artemether/lumefantrine 1244
Indications and efficacy.  1244
Mechanism of action.  1244
Pharmacokinetics.  1244
Why do we combine artemether with lumefantrine?  1244
Adverse effects.  1244
Drug interactions.  1244
Artesunate 1244
Atovaquone/proguanil 1244
Key points 1245
99 Antiprotozoal drugs II: Miscellaneous agents 1246
Protozoal infections 1246
Drugs of choice for protozoal infections 1247
Iodoquinol 1247
Metronidazole 1248
Nitazoxanide 1249
Key points 1251
100 Ectoparasiticides 1252
Ectoparasitic infestations 1252
Pediculosis (infestation with lice) 1252
Head lice 1252
Body lice 1252
Pubic lice 1252
Scabies (infestation with mites) 1253
Pharmacology of ectoparasiticides 1253
Permethrin 1253
Basic pharmacology 1253
Actions and uses.  1253
Resistance.  1254
Pharmacokinetics.  1254
Adverse effects.  1254
Pyrethrins plus piperonyl butoxide 1254
Malathion 1254
Benzyl alcohol 1254
Ivermectin 1255
Key points 1256
101 Basic principles of cancer chemotherapy 1257
What is cancer? 1257
The growth fraction and its relationship to chemotherapy 1259
Obstacles to successful chemotherapy 1260
Toxicity to normal cells 1260
Cure requires 100% cell kill 1260
Absence of truly early detection 1261
Solid tumors respond poorly 1262
Drug resistance 1263
Heterogeneity of tumor cells 1263
Limited drug access to tumor cells 1263
Strategies for achieving maximum benefits from chemotherapy 1263
Intermittent chemotherapy 1263
Combination chemotherapy 1264
Benefits of drug combinations 1264
Suppression of drug resistance.  1264
Increased cancer cell kill.  1264
Reduced injury to normal cells.  1264
Guidelines for drug selection 1265
Optimizing dosing schedules 1265
Regional drug delivery 1265
Major toxicities of chemotherapeutic drugs 1265
Bone marrow suppression 1265
Neutropenia 1265
Thrombocytopenia 1266
Anemia 1266
Digestive tract injury 1266
Nausea and vomiting 1267
Other important toxicities 1267
Making the decision to treat 1268
Looking ahead 1269
Key points 1269
102 Anticancer drugs I: Cytotoxic agents 1271
Introduction to the cytotoxic anticancer drugs 1271
Mechanisms of cytotoxic action 1271
Cell-cycle phase specificity 1271
Toxicity 1274
Dosage, handling, and administration 1274
Alkylating agents 1274
Shared properties 1274
Properties of individual alkylating agents 1276
Nitrogen mustards 1276
Cyclophosphamide.  1276
Nitrosoureas 1276
Carmustine (BCNU).  1276
Platinum compounds 1277
Antimetabolites 1277
Folic acid analogs 1277
Methotrexate 1278
Mechanism of action.  1278
Toxicity.  1278
Pyrimidine analogs 1279
Cytarabine 1279
103 Anticancer drugs II: Hormonal agents, targeted drugs, and other noncytotoxic anticancer drugs 1288
Drugs for breast cancer 1288
Drugs for prostate cancer 1294
Androgen deprivation therapy 1294
Gonadotropin-releasing hormone agonists 1294
Leuprolide 1295
Therapeutic use.  1295
Mechanism of action.  1295
Co-treatment with an androgen receptor blocker.  1295
Adverse effects.  1296
Gonadotropin-releasing hormone antagonists 1296
Degarelix 1296
Androgen receptor blockers 1296
Flutamide 1296
Abiraterone, a CYP17 inhibitor 1297
Other drugs for prostate cancer 1298
Sipuleucel-T 1298
Targeted anticancer drugs 1298
Kinase inhibitors 1299
EGFR tyrosine kinase inhibitors 1299
Cetuximab 1299
Mechanism of action.  1299
Therapeutic uses.  1299
Colorectal cancer.  1299
Head and neck cancer.  1299
Adverse effects.  1299
BCR-ABL tyrosine kinase inhibitors 1302
Imatinib 1302
Indications.  1302
CML and its treatment.  1303
Mechanism of action and clinical effects.  1303
Pharmacokinetics.  1303
Adverse effects.  1303
Effects in pregnancy and breast-feeding.  1303
Drug interactions.  1303
Vemurafenib, a BRAF V600E kinase inhibitor 1305
Other targeted drugs 1305
CD20-directed antibodies 1305
Rituximab 1306
Actions, use, and dosage.  1306
Adverse effects.  1306
Infusion reactions.  1306
Tumor lysis syndrome (TLS).  1306
Mucocutaneous reactions.  1306
Hepatitis B reactivation.  1306
Progressive multifocal leukoencephalopathy (PML).  1306
Other adverse effects.  1306
Brentuximab vedotin, an antibody-drug conjugate 1307
Angiogenesis inhibitors 1307
Bevacizumab 1307
Mechanism of action.  1307
Therapeutic use.  1307
Adverse effects.  1309
Effect in pregnancy.  1309
Other noncytotoxic anticancer drugs 1312
Key points 1314
104 Drugs for the eye 1317
Drugs for glaucoma 1317
Pathophysiology and treatment overview 1317
Primary open-angle glaucoma 1317
Characteristics.  1317
Risk factors.  1318
Screening.  1318
Management.  1318
Angle-closure glaucoma 1318
Drugs used to treat glaucoma 1319
Beta-adrenergic blocking agents 1319
Actions and use in glaucoma.  1319
Adverse effects.  1319
Local.  1319
Systemic.  1319
Prostaglandin analogs 1320
Latanoprost.  1320
Alpha2-adrenergic agonists 1320
Brimonidine.  1320
Cycloplegics and mydriatics 1322
Anticholinergic agents 1322
Effects on the eye 1322
Adverse effects 1322
Blurred vision and photophobia.  1322
Precipitation of angle-closure glaucoma.  1322
Systemic effects.  1322
Phenylephrine (an adrenergic agonist) 1323
Therapeutic and diagnostic applications 1323
Adverse effects 1323
Effects on the eye.  1323
Drugs for allergic conjunctivitis 1323
Drugs for age-related macular degeneration 1323
Pathophysiology of ARMD 1323
Management of dry ARMD 1324
Management of wet (neovascular) ARMD 1324
Angiogenesis inhibitors 1325
Actions and benefits.  1325
Adverse effects.  1325
Pegaptanib, ranibizumab, aflibercept, and bevacizumab: Comparisons and contrasts.  1325
Molecular structure.  1325
Approved usage and cost.  1325
Efficacy.  1325
Key points 1326
105 Drugs for the skin 1328
Anatomy of the skin 1328
Topical glucocorticoids 1328
Keratolytic agents 1329
Acne 1330
Pathophysiology 1330
Overview of treatment 1331
Nondrug therapy 1331
Drug therapy 1331
Topical drugs for acne 1331
Antibiotics 1331
Benzoyl peroxide.  1331
Clindamycin and erythromycin.  1331
Retinoids 1332
Tretinoin.  1332
Use for acne.  1332
Use for fine wrinkles.  1332
Adverse effects.  1332
Oral drugs for acne 1332
Antibiotics 1332
Isotretinoin 1333
Actions and use.  1333
Adverse effects.  1333
Common effects.  1333
Rare effect: Depression.  1333
Drug interactions.  1333
Contraindication: Pregnancy.  1333
iPLEDGE program.  1333
Requirements for female patients.  1333
Requirements for prescribers.  1333
Hormonal agents 1334
Oral contraceptives.  1334
Spironolactone.  1334
Sunscreens 1334
Key points 1344
106 Drugs for the ear 1346
Anatomy of the ear 1346
Otitis media and its management 1346
Acute otitis media 1346
Characteristics, pathogenesis, and microbiology 1346
Diagnosis 1346
Standard treatment 1347
Treatment of antibiotic-resistant AOM 1348
Prevention 1349
Prevention and treatment of influenza.  1349
Vaccination against streptococcus pneumoniae.  1349
Recurrent otitis media 1349
Otitis media with effusion 1350
Otitis externa and its management 1350
Acute otitis externa 1350
Characteristics, pathogenesis, and microbiology 1350
Treatment 1350
Topical medications.  1350
Oral medications.  1350
Prevention 1350
Necrotizing otitis externa 1351
Fungal otitis externa (otomycosis) 1351
Key points 1351
107 Miscellaneous noteworthy drugs 1352
Drugs for pulmonary arterial hypertension 1352
Prostacyclin analogs 1352
Epoprostenol 1352
Treprostinil 1353
Iloprost 1353
Endothelin-1 receptor antagonists 1353
Bosentan 1353
Actions and use.  1353
Pharmacokinetics.  1354
Adverse effects.  1354
Hepatotoxicity.  1354
Fetal injury.  1354
Anemia.  1354
Drug interactions.  1354
Phosphodiesterase type 5 inhibitors 1354
Sildenafil 1354
Drugs for neonatal respiratory distress syndrome 1355
Prenatal and postnatal glucocorticoids 1355
Lung surfactant 1355
Drugs for cystic fibrosis 1356
Pathophysiology of cystic fibrosis 1356
Drug therapy 1356
Nutritional drugs 1356
Pancreatic enzymes.  1356
Fat-soluble vitamins.  1356
Pulmonary drugs 1356
Inhaled antibiotics for chronic suppressive therapy.  1356
Oral and intravenous antibiotics for acute therapy.  1356
Inhaled dornase alfa.  1356
Oral ibuprofen.  1357
Inhaled beta2-adrenergic agonists.  1357
Drugs for sickle cell anemia 1357
Analgesics and glucocorticoids 1357
Hydroxyurea 1357
Drugs for hyperuricemia caused by cancer chemotherapy 1358
Phosphate binders for patients on dialysis 1358
Gamma-hydroxybutyrate for cataplexy in patients with narcolepsy 1359
Riluzole for amyotrophic lateral sclerosis 1360
Tetrabenazine for chorea of Huntington’s disease 1360
Drugs for fibromyalgia syndrome 1361
Antidepressants and related drugs 1363
Tricyclic antidepressants and cyclobenzaprine 1363
Selective serotonin reuptake inhibitors (SSRIs) 1363
Serotonin/norepinephrine reuptake inhibitors 1363
Duloxetine.  1363
Milnacipran.  1363
Anticonvulsants 1364
Analgesics 1364
Drugs for sleep disturbances 1364
Drugs for heriditary angioedema 1364
Old drugs for HAE 1364
New drugs for HAE 1364
C1-inhibitor 1364
Ecallantide 1365
Icatibant 1366
Belimumab for systemic lupus erythematosus 1366
Key points 1367
108 Dietary supplements 1369
Regulation of dietary supplements 1370
Dietary supplement health and education ACT of 1994 1370
Core provisions 1370
Package labeling 1370
Adverse effects 1370
Impurities, adulterants, and variability 1370
Other provisions 1371
Current good manufacturing practices ruling 1371
Dietary supplement and nonprescription drug consumer protection ACT 1371
A comment on the regulatory status of dietary supplements 1371
Private quality certification programs 1371
Standardization of herbal products 1371
Adverse interactions with conventional drugs 1372
Some commonly used dietary supplements 1372
Black cohosh 1372
Coenzyme Q-10 1373
Cranberry juice 1373
Echinacea 1373
Feverfew 1374
Flaxseed 1374
Garlic 1374
Ginger root 1375
Ginkgo biloba 1375
Glucosamine 1376
Green tea 1376
Probiotics 1376
Resveratrol 1377
Saw palmetto 1377
Soy 1378
St. John’s wort 1378
Valerian 1379
Harmful supplements to avoid 1379
Comfrey 1379
Kava 1379
Ma huang (ephedra) 1380
Key points 1380
109 Management of poisoning 1381
Fundamentals of treatment 1381
Drugs and procedures used to minimize poison absorption 1382
Reducing absorption of ingested poisons 1382
Activated charcoal 1382
Surface decontamination 1382
Drugs and procedures used for poison removal 1382
Drugs that enhance renal excretion 1382
Nondrug methods of poison removal 1382
Specific antidotes 1383
Heavy metal antagonists 1383
Other important antidotes 1385
Poison control centers 1385
Key points 1386
110 Potential weapons of biologic, radiologic, and chemical terrorism 1387
Bacteria and viruses 1387
Bacillus anthracis (anthrax) 1387
Microbiology 1387
Clinical manifestations 1387
Appendix A Adult immunization, United States, 2011 1397
Immunization schedule notes 1397
1. Influenza vaccination 1397
2. Tetanus, diphtheria, and acellular pertussis (Td/Tdap) vaccination 1397
3. Varicella vaccination (“shingles”) 1397
4. Human papillomavirus (HPV) vaccination 1399
5. Herpes zoster vaccination 1399
6. Measles, mumps, rubella (MMR) vaccination 1399
Measles component.  1399
Mumps component.  1399
Rubella component.  1399
Healthcare personnel born before 1957.  1399
7. Pneumococcal polysaccharide (PPSV) vaccination 1399
Medical indications.  1399
Other indications.  1399
8. Revaccination with PPSV 1399
9. Meningococcal vaccination 1400
Appendix B Guide to gender-related drugs 1401
Drugs used in pregnancy 1401
Drugs related to labor and delivery 1401
Drugs used in perinatal therapy 1401
Drugs and breast-feeding 1401
Drugs for women’s health disorders 1401
Drugs used to prevent or terminate pregnancy 1401
Drugs for male health disorders 1401
Drugs for sexually transmitted diseases (STDs) 1401
Appendix C Commonly used abbreviations 1402
Appendix D Canadian drug information 1404
International system of units 1404
Drug serum concentrations 1404
Canadian drug legislation 1404
Prescription drugs (schedule F) 1404
Nonprescription medications 1406
National drug schedules 1406
New drug development in Canada 1406
Patent laws 1406
References 1407
Appendix E Prototype drugs and their major uses 1408
Peripheral nervous system drugs 1408
Muscarinic agonists 1408
Muscarinic antagonists 1408
Cholinesterase inhibitors 1408
Neuromuscular blockers 1408
Adrenergic agonists 1408
Alpha-adrenergic blockers 1408
Beta-adrenergic blockers 1408
Indirect-acting antiadrenergics 1408
Central nervous system drugs 1408
Drugs for Parkinson’s disease 1408
Drugs for Alzheimer’s disease 1408
Drugs for multiple sclerosis 1408
Drugs for epilepsy 1408
Drugs for migraine 1408
Local anesthetics 1408
General anesthetics 1409
Opioid (narcotic) analgesics and antagonists 1409
Antipsychotic agents 1409
Antidepressants 1409
Drugs for bipolar disorder (manic-depressive illness) 1409
Drugs for anxiety and insomnia 1409
Central nervous system stimulants 1409
Drugs for attention-deficit/hyperactivity disorder 1409
Pharmacologic aids to smoking cessation 1409
Diuretics 1409
Drugs that affect the heart, blood vessels, and blood 1409
Drugs that affect the Renin-Angiotensin-Aldosterone system 1409
Calcium channel blockers 1409
Drugs for hypertension 1409
Drugs for angina pectoris 1410
Drugs for heart failure 1410
Antidysrhythmic drugs 1410
Drugs used to lower blood cholesterol 1410
Anticoagulants 1410
Antiplatelet and thrombolytic drugs 1410
Hematopoietic and thrombopoietic growth factors 1410
Drugs for hemophilia 1410
Drugs for endocrine disorders 1410
Drugs for diabetes 1410
Drugs for thyroid disorders 1411
Drugs for adrenal insufficiency 1411
Women’s health 1411
Estrogens 1411
Progestins 1411
Contraceptive agents 1411
Drugs for infertility 1411
Drugs that affect uterine function 1411
Men’s health 1411
Androgens 1411
Drugs for erectile dysfunction 1411
Drugs for benign prostatic hyperplasia 1411
Anti-inflammatory, antiallergic, and immunologic drugs 1411
Immunosuppressants 1411
Antihistamines (h1 antagonists) 1411
COX inhibitors (aspirin-like drugs) 1411
Glucocorticoids 1411
Drugs for bone and joint disorders 1411
Drugs for rheumatoid arthritis 1411
Drugs for hyperuricemia of gout 1411
Drugs for osteoporosis 1412
Respiratory tract drugs 1412
Drugs for asthma 1412
Drugs for allergic rhinitis 1412
Drugs for cough 1412
Gastrointestinal drugs 1412
Drugs for peptic ulcer disease 1412
Laxatives 1412
Antiemetics 1412
Drugs for irritable bowel syndrome (IBS) 1412
Drugs for inflammatory bowel disease 1412
Drugs for weight loss 1412
Drugs for bacterial infections 1412
Penicillins, cephalosporins, and other drugs that weaken the bacterial cell wall 1412
Bacteriostatic inhibitors of protein synthesis 1413
Aminoglycosides (bactericidal inhibitors of protein synthesis) 1413
Fluoroquinolones 1413
Cyclic lipopeptides 1413
Sulfonamides and trimethoprim 1413
Drugs for tuberculosis 1413
Drugs for fungal infections 1413
Drugs for viral infections 1413
Drugs for cytomegalovirus infection 1413
Drugs for herpes simplex virus infection 1413
Drugs for hepatitis 1413
Drugs for influenza 1413
Drugs for respiratory syncytial virus infection 1413
Drugs for HIV infection 1413
Drugs for parasitic diseases 1413
Drugs for malaria 1413
Drugs for ectoparasitic infestation 1413
Anticancer drugs: Cytoxic agents 1413
Anticancer drugs: Hormonal agents, targeted drugs, and other noncytotoxic anticancer drugs 1414
Drugs for breast cancer 1414
Drugs for prostate cancer 1414
Glucocorticoids 1414
Biologic response modifiers: Immunostimulants 1414
Targeted drugs 1414
Other important drugs 1414
Drugs for acne 1414
Drugs for open-angle glaucoma 1414
Drugs for age-related macular degeneration 1414
Drugs for pulmonary arterial hypertension 1414
Drugs for neonatal respiratory distress syndrome 1414
Drugs for fibromyalgia syndrome 1414
Drugs for hereditary angioedema 1414
Index 1415
0-9, and symbols 1415
A 1415
B 1422
C 1424
D 1430
E 1433
F 1435
G 1437
H 1438
I 1441
J 1443
K 1443
L 1444
M 1445
N 1449
O 1451
P 1452
Q 1457
R 1457
S 1459
T 1462
U 1465
V 1465
W 1467
X 1467
Y 1467
Z 1467
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