A defamatory statement is a false statement of fact that exposes a person to hatred, ridicule, or contempt, causes him to be shunned, or injures him in his business or trade.
Definition of pharmacology. 1  1 : the science of drugs including their origin, composition, pharmacokinetics, therapeutic use, and toxicology. 2  2 : the properties and reactions of drugs especially with relation to their therapeutic value.
Pharmacology-is the science of the interaction of chemical agents (drugs) with living systems. It encompasses the study of the biochemical and physiologic aspects of drug effects, including absorption, distribution, metabolism, elimination, toxicity, and specific mechanisms of drug action.rugs often work on more than one receptor, and as a result produce more than one kind of biological response (Figure 10). One good example is norepinephrine (NE), the sympathetic neurotransmitter which can relax bronchial smooth muscle, but constrict arterial smooth muscle.