Kinetics of the pharmacological response

Pharmacokinetics is the study of the kinetics of drug absorption, distribution and elimination.

The pharmacokinetic principles determine the relationship between the administered dose and the time course of the drug in the body.

The drug is distributed to all parts of the body including the site of action where it produces its effects.

The pharmacodynamic principles determine the relationship between the drug concentration at the site of action and drug effect.

PharmacokineticsPharmacodynamics

Drug

The Body

Plasma
concentration

Site of
action

Effect

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