2.1 Drug transport The process by which a drug moves from the site of administration to the site of measurement (usually blood)or site of action. Requires passage across biological membranes Major Mechanisms of Drug transport A.Passive Diffusion B.Active transport2.1 Drug transport • The process by which a drug moves from the site of administration to the site of measurement (usually blood) or site of action. • Requires passage across biological membranes Major Mechanisms of Drug transport A. Passive Diffusion B. Active transport