21:00 Drug Classification 28:00 Drug Nomenclature 33:00 Sources of Drugs 40:00 Drug Administration 1:00:00 Degree of Ionization 1:03:52 Clinical Significance of the Equation 1:08:49 Filtration 1:10:00 Specialized Transport 1:17:00 Endocytosis 1:20:26 Absorption