This article throws light upon the eight main physiological factors that affect the rate of drug absorption. The factors are: 1. Passage of Drug Molecule Across Membranes 2. pKa 3. pH – pka Partion Concept 4. pH-Partition Hypothesis 5. Active Transport 6. Facilitated Diffusion 7. Pinocytosis (Vesicular Transport) 8. Pore or Convective Transport. Physiologic Factor […]