Pharmacokinetics vs. Pharmacodynamics



(pharmacology) A branch of pharmacology concerned with the rate at which drugs are absorbed, distributed, metabolized, and eliminated by the body.


(pharmacology) The branch of pharmacology that studies the effects and modes of action of drugs upon the body.


the study of the action of drugs in the body: method and rate of excretion; duration of effect; etc.


Pharmacodynamics (PD) is the study of the biochemical and physiologic effects of drugs (especially pharmaceutical drugs). The effects can include those manifested within animals (including humans), microorganisms, or combinations of organisms (for example, infection).


Pharmacokinetics (from Ancient Greek pharmakon and kinetikos see chemical kinetics), sometimes abbreviated as PK, is a branch of pharmacology dedicated to determine the fate of substances administered to a living organism. The substances of interest include any chemical xenobiotic such as: pharmaceutical drugs, pesticides, food additives, cosmetics, etc.

‘drug’; ‘moving, putting in motion’;

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