title: Factors affecting gastrointestinal absorption of drugs.
mesh_terms: D000818:Animals; D001693:Biological Transport, Active; D002021:Buffers; D002463:Cell Membrane Permeability; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D004058:Diffusion; D004064:Digestive System / Q000378:metabolism / Q000382:microbiology; D004304:Dosage Forms; D004848:Epithelium; D005502:Food; D005753:Gastric Mucosa / Q000098:blood supply; D005769:Gastrointestinal Motility; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007408:Intestinal Absorption / Q000187:drug effects; D007413:Intestinal Mucosa / Q000098:blood supply; D007421:Intestine, Small / Q000166:cytology; D008208:Lymphatic System / Q000502:physiology; D004364:Pharmaceutical Preparations / Q000008:administration & dosage / Q000378:metabolism*; D011955:Receptors, Drug; D012039:Regional Blood Flow; D012492:Salts; D013270:Stomach; D013499:Surface Properties; D013997:Time Factors; D014882:Water-Electrolyte Balance
chemical_list: D002021:Buffers; D004304:Dosage Forms; D004364:Pharmaceutical Preparations; D011955:Receptors, Drug; D012492:Salts