Pharmacokinetics

Comprehensive guide to drug absorption, distribution, metabolism, excretion, and pharmacokinetic principles.

Browse the pages below for detailed information.

Bioavailability and Bioequivalence

Bioavailability refers to the fraction of a drug that reaches systemic circulation unchanged. Bioequivalence studies compare the bioavailability of different formulations to establish therapeutic equi

Drug Absorption

Drug absorption is the process by which a pharmaceutical agent enters the bloodstream from its site of administration. This fundamental pharmacokinetic process determines the rate and extent of drug a

Drug Distribution

Drug distribution describes the reversible transfer of a drug between compartments in the body. The distribution pattern determines which tissues and organs are exposed to the drug and influences the

Drug Excretion

Drug excretion is the process by which drugs and their metabolites are eliminated from the body. The kidneys are the primary organs of drug excretion, though drugs are also eliminated through bile, fe

Drug Metabolism

Drug metabolism is the biochemical modification of pharmaceutical compounds by enzymatic systems in the body. Metabolism typically converts lipophilic drugs into more hydrophilic metabolites that can

Drug Transporters

Drug transporters are membrane proteins that facilitate the movement of drugs across biological membranes. They play critical roles in drug absorption, distribution, and elimination.

Therapeutic Drug Monitoring

Therapeutic drug monitoring (TDM) is the clinical practice of measuring drug concentrations in blood to optimize dosing regimens and improve therapeutic outcomes while minimizing toxicity.