《药理学》课程教学资源（参考书籍）英文版《Color atlas of pharmacology》第二版

Contents vIl Drug Allergy Drug Toxicity in Pregnancy and Lactation Drug-independent Effects Placebo- Homeopathy Systems Pharmacology he Sympathetic Nervous System mpathetic Nervous System 80 tructure of the Sympathetic Nervous System Adrenoceptor Subtypes Catecholamine actions Structure- Activity Relationship of Sympathomimetic -Sympathomimetics, a-Sympatholytics Types of B-Blockers Drugs Acting on the Parasympathetic Nervous System Parasympathetic Nervous System Cholinergic Synapse Parasympathomimetics Parasympatholytic Ganglionic Transmission Effects of Nicotine on Body Function Consequences of Tobacco Smoking 112 Biogenic amines Biogenic Amines- Actions and harmacological Implications 14 Vasodilators 118 Inhibitors of the RAA Sy Drugs Acting on Smooth Muscle Drugs Used to Influence Smooth Muscle Organs Overview of Modes of Action cardiac Glycoside Electrophysiological Actions of Antiarrhythmics of the Na*-Channel Blocking Type lros &s for the Treatment of Anemias Prophylaxis and Therapy of Thromboses arin Derivatives- Heparin Formation, Activation, and Aggregation of Platelets LOllmann, Color Atlas of Pharmacology e 2000 Thieme All rights reserved Usage subject to terms and conditions of license

Contents VII Drug Allergy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Drug Toxicity in Pregnancy and Lactation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Drug-independent Effects Placebo – Homeopathy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Systems Pharmacology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Drug Acting on the Sympathetic Nervous System Sympathetic Nervous System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Structure of the Sympathetic Nervous System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Adrenoceptor Subtypes and Catecholamine Actions . . . . . . . . . . . . . . . . . . . . . . 84 Structure – Activity Relationship of Sympathomimetics . . . . . . . . . . . . . . . . . . . 86 Indirect Sympathomimetics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 α-Sympathomimetics, α-Sympatholytics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 β-Sympatholytics (β-Blockers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Types of β-Blockers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 Antiadrenergics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Drugs Acting on the Parasympathetic Nervous System Parasympathetic Nervous System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Cholinergic Synapse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Parasympathomimetics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Parasympatholytics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 Nicotine Ganglionic Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Effects of Nicotine on Body Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 Consequences of Tobacco Smoking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112 Biogenic Amines Biogenic Amines – Actions and Pharmacological Implications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 Serotonin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 Vasodilators Vasodilators – Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 Organic Nitrates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 Calcium Antagonists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122 Inhibitors of the RAA System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 Drugs Acting on Smooth Muscle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drugs Used to Influence Smooth Muscle Organs . . . . . . . . . . . . . . . . . . . . . . . . . . 126 Cardiac Drugs Overview of Modes of Action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 Cardiac Glycosides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 Antiarrhythmic Drugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 Electrophysiological Actions of Antiarrhythmics of the Na+-Channel Blocking Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 Antianemics Drugs for the Treatment of Anemias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138 Iron Compounds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 Antithrombotics Prophylaxis and Therapy of Thromboses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142 Coumarin Derivatives – Heparin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144 Fibrinolytic Therapy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146 Intra-arterial Thrombus Formation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148 Formation, Activation, and Aggregation of Platelets . . . . . . . . . . . . . . . . . . . . . . . 148 Lüllmann, Color Atlas of Pharmacology © 2000 Thieme All rights reserved. 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VIll Contents Inhibitors of Platelet Aggregat systemic Effect of Acetylsalicylic Acid dverse Effects of Antiplatelet Drugs Drugs used in Hyperlipoproteinemias Diuretic Nacl Reabsorption in the Kidney Diuretics of the Sulfonamide Type tassium-Sparing Diuretics antidiuretic Hormone(ADH)and Derivatives Drugs for Gastric and Duodenal Ulcers Laxatives rugs Affecting Motor Function polarizing Muscle Relaxants Antiparkinsonian Drugs Drugs for the Suppression of Pain, Analgesics, Pain Mechanisms and Pathways 94 tic An Antipyretic Analgesics and Antiinflammatory Drugs steroidal Antiinflammatory Thermoregulation and Antipyretics Local Anesthetics Morphine Type General Anesthetic Drugs eneral Anesthesia and general Anesthetic drugs Injectable Anesthetics porifics, Hypnotics p-Wake Cycle and Hypnotics Therapy of Schizophreni 240 LOllmann, Color Atlas of Pharmacology e 2000 Thieme All rights reserved Usage subject to terms and conditions of license

Inhibitors of Platelet Aggregation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 Presystemic Effect of Acetylsalicylic Acid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 Adverse Effects of Antiplatelet Drugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 Plasma Volume Expanders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 Drugs used in Hyperlipoproteinemias Lipid-Lowering Agents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 Diuretics Diuretics – An Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158 NaCI Reabsorption in the Kidney . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160 Osmotic Diuretics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160 Diuretics of the Sulfonamide Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162 Potassium-Sparing Diuretics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164 Antidiuretic Hormone (/ADH) and Derivatives . . . . . . . . . . . . . . . . . . . . . . . . . . . 164 Drugs for the Treatment of Peptic Ulcers Drugs for Gastric and Duodenal Ulcers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166 Laxatives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 Antidiarrheals Antidiarrheal Agents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178 Other Gastrointestinal Drugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180 Drugs Acting on Motor Systems Drugs Affecting Motor Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182 Muscle Relaxants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184 Depolarizing Muscle Relaxants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186 Antiparkinsonian Drugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188 Antiepileptics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190 Drugs for the Suppression of Pain, Analgesics, Pain Mechanisms and Pathways . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194 Antipyretic Analgesics Eicosanoids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196 Antipyretic Analgesics and Antiinflammatory Drugs Antipyretic Analgesics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 Antipyretic Analgesics Nonsteroidal Antiinflammatory (Antirheumatic) Agents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 Thermoregulation and Antipyretics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 Local Anesthetics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204 Opioids Opioid Analgesics – Morphine Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210 General Anesthetic Drugs General Anesthesia and General Anesthetic Drugs . . . . . . . . . . . . . . . . . . . . . . . . 216 Inhalational Anesthetics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218 Injectable Anesthetics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220 Hypnotics Soporifics, Hypnotics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222 Sleep-Wake Cycle and Hypnotics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224 Psychopharmacologicals Benzodiazepines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226 Pharmacokinetics of Benzodiazepines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228 Therapy of Manic-Depressive Illnes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230 Therapy of Schizophrenia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236 Psychotomimetics (Psychedelics, Hallucinogens) . . . . . . . . . . . . . . . . . . . . . . . . . 240 VIII Contents Lüllmann, Color Atlas of Pharmacology © 2000 Thieme All rights reserved. Usage subject to terms and conditions of license

ContentsⅨ Hormones 242 Thyroid Hormone Therapy Hyperthyroidism and Antithyroid Drugs 246 Follicular Growth and Ovulation, Estrogen and estin pr Treatment of Insulin-Dependent iabetes mellitus Treatment of Maturity-Onset(Type ll) 262 Drugs for Maintaining Calcium Homeostasis Antibacterial Drug hibitors of Tetrahydrofolate Synthesis hibitors of dNa function Drugs for Treating Mycobacterial Infections Antifungal Drugs Antin &s used in the Treatment of Fungal Infection Chemotherapy of Viral Infection Drugs for Treatment of AIDS 288 Disinfectants and Antiseptics Drugs for Treating Endo-and Ectoparasitic Infestations 292 Anticancer Drugs py of Malignant Tumors hibition of Immune Responses Antidotes Therapy of Acute Myocardial Infarction Hypotension Emesis LOllmann, Color Atlas of Pharmacology e 2000 Thieme All rights reserved Usage subject to terms and conditions of license

Contents IX Hormones Hypothalamic and Hypophyseal Hormones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242 Thyroid Hormone Therapy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244 Hyperthyroidism and Antithyroid Drugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246 Glucocorticoid Therapy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248 Androgens, Anabolic Steroids, Antiandrogens . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252 Follicular Growth and Ovulation, Estrogen and Progestin Production . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254 Oral Contraceptives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256 Insulin Therapy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258 Treatment of Insulin-Dependent Diabetes Mellitus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260 Treatment of Maturity-Onset (Type II) Diabetes Mellitus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262 Drugs for Maintaining Calcium Homeostasis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264 Antibacterial Drugs Drugs for Treating Bacterial Infections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266 Inhibitors of Cell Wall Synthesis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268 Inhibitors of Tetrahydrofolate Synthesis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272 Inhibitors of DNA Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274 Inhibitors of Protein Synthesis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276 Drugs for Treating Mycobacterial Infections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280 Antifungal Drugs Drugs Used in the Treatment of Fungal Infection . . . . . . . . . . . . . . . . . . . . . . . . . 282 Antiviral Drugs Chemotherapy of Viral Infections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284 Drugs for Treatment of AIDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288 Disinfectants Disinfectants and Antiseptics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290 Antiparasitic Agents Drugs for Treating Endo- and Ectoparasitic Infestations . . . . . . . . . . . . . . . . . . . 292 Antimalarials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294 Anticancer Drugs Chemotherapy of Malignant Tumors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296 Immune Modulators Inhibition of Immune Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 Antidotes Antidotes and treatment of poisonings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302 Therapy of Selected Diseases Angina Pectoris . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306 Antianginal Drugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308 Acute Myocardial Infarction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310 Hypertension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312 Hypotension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314 Gout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316 Osteoporosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318 Rheumatoid Arthritis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320 Migraine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322 Common Cold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324 Allergic Disorders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326 Bronchial Asthma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328 Emesis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330 Lüllmann, Color Atlas of Pharmacology © 2000 Thieme All rights reserved. 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X Contents Further Reading LOllmann, Color Atlas of Pharmacology e 2000 Thieme All rights reserved Usage subject to terms and conditions of license

Further Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332 Drug Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368 X Contents Lüllmann, Color Atlas of Pharmacology © 2000 Thieme All rights reserved. Usage subject to terms and conditions of license

2 History of Pharmacolog Since time immemorial. medicaments have been used for treating disease in humans and animals. The herbals of an- quity describe the therapeutic powers f certain plants and minerals. Belief in he curative powers of plants and cer- traditional knowledge, that is, empirical information not subjected to critical icine. He prescribed chemically defined fessional en re poison, nothing is without poison; the dose alone causes a thing not to be poi- Claudius Galen(129-200 A D )first at ackground of p ology Both the- ribute equally to the rational use of medicines through interpretation of ob- rved and experienced results. experience. We, however, maintain that it is found in part by experience, in part by theory. Neither experience nor the lone is apt to discover all. Theophrastus von Hohenheim(1493- Johann Jakob Wepfer (1620-1695 began to was the first to verify by animal experi- quesiton doctrines handed down from mentation assertions about pharmaco- active ingredient(s)in prescribed reme. "Pondered at length. Finally I resolved to es, while rejecting the irrational co rify the matter by experiments. coctions and mixtures of medieval med- LOllmann, Color Atlas of Pharmacology e 2000 Thieme All rights reserved Usage subject to terms and conditions of license

History of Pharmacology Since time immemorial, medicaments have been used for treating disease in humans and animals. The herbals of an￾tiquity describe the therapeutic powers of certain plants and minerals. Belief in the curative powers of plants and cer￾tain substances rested exclusively upon traditional knowledge, that is, empirical information not subjected to critical ex￾amination. The Idea Claudius Galen (129–200 A.D.) first at￾tempted to consider the theoretical background of pharmacology. Both the￾ory and practical experience were to contribute equally to the rational use of medicines through interpretation of ob￾served and experienced results. “The empiricists say that all is found by experience. We, however, maintain that it is found in part by experience, in part by theory. Neither experience nor theory alone is apt to discover all.” The Impetus Theophrastus von Hohenheim (1493– 1541 A.D.), called Paracelsus, began to quesiton doctrines handed down from antiquity, demanding knowledge of the active ingredient(s) in prescribed reme￾dies, while rejecting the irrational con￾coctions and mixtures of medieval med￾icine. He prescribed chemically defined substances with such success that pro￾fessional enemies had him prosecuted as a poisoner. Against such accusations, he defended himself with the thesis that has become an axiom of pharma￾cology: “If you want to explain any poison prop￾erly, what then isn‘t a poison? All things are poison, nothing is without poison; the dose alone causes a thing not to be poi￾son.” Early Beginnings Johann Jakob Wepfer (1620–1695) was the first to verify by animal experi￾mentation assertions about pharmaco￾logical or toxicological actions. “I pondered at length. Finally I resolved to clarify the matter by experiments.” 2 History of Pharmacology Lüllmann, Color Atlas of Pharmacology © 2000 Thieme All rights reserved. Usage subject to terms and conditions of license