Topics: drug administration, pharmacokinetics, membrane trnasport, distribution of drugs, kinetics of elimination, receptor pharmacology, drug development, clinical pharmacology, adverse drug effects, autonomic nervous system, cholinergic transmission, cholinergic drugs, anticholinergic drugs, autonomic ganglia, adrenergic transmission, adrenergic drugs, antiadrenergic drugs, adrenergic receptor antagonists, glaucoma, autacoids, histamine, antihistaminics, 5-hydroxytryptamine, migraine, prostaglandins, leukotrienes, eicosanoids, platelet activating factor, nonsteroidal antiinflammatory drugs, antipyretic-analgesics, antirheumatoid drugs, antigout drugs, respiratory system drugs, cough, bronchial asthma, hormones, anterior pituitary hormones, thyroid hormones, thyroid inhibitors, insulin, oral antidiabetic drugs, glucagon, corticosteroid, androgen, erectile dysfunction, estrogen, progestin, contraceptives, oxytocin, calcium balance, skeletal muscle relaxants, peripheral nervous system, somatic nervous system, local anaesthetics, central nervous system, general anaesthetics, ethyl, methyl, sedative-hypnotics, antiepileptic drugs, antiparkinsonian drugs, mental illness, antipsychotic, antimanic, antidepressant, antianxiety, Opioid analgesiscs, antagonists, CNS stimulants, cognition enhancers, cardiovascular drugs, cardiac electrophysiological considerations, renin-angiotensin system, nitric oxide, vasoactive peptide signal molecules, cardiac glycoside, heart failure, antiarrhythmic drugs, antianginal drugs, anti-ischaemic drugs, antihypertensive drugs, diuretics, urine formation, antidiuretics, blood formation, haematinics, erythropoietin, hypolipidaemic drugs, peptic ulcer, gastroesophageal reflux disease, antiemetic drugs, prokinetic drugs, digestant drugs, constipation, diarrhoea, antimicrobial drugs, sulfonamides, beta-lactam antibiotics, tetracycline, chloramphenicol, broad spectrum antibiotics, aminoglycoside antibiotics, macrolide, lincosamide, glycopeptide, antibacterial antibiotics, urinary antiseptics, antitubercular, antileprotic drugs, antifungal, antiviral, anticancer