Topics: Pharmacokinetics, Pharmacodynamics, Life Cycle of a Drug, Slow Absorption, Faster Absorption, Bioavailability, Depot Binding, Degradation, Excretion, Drug Effectiveness, Dose-response curve, Therapeutic Index, Effective dose, Lethal dose, Effective concentration, Drug Efficacy, Drug potency, Drug-drug Interactions, Cumulative Effects, Additive Effects, Synergistic Effects, Antagonistic Effects, Agonism, Antagonism, drug-receptor interaction