title: Interaction between intestinal absorption and secretion of monoquaternary ammonium compounds in guinea pigs--a concept for the absorption kinetics of organic cations.
mesh_terms: D000818:Animals; D002412:Cations / Q000378:metabolism*; D005260:Female; D006168:Guinea Pigs; D066298:In Vitro Techniques; D007408:Intestinal Absorption; D007421:Intestine, Small / Q000378:metabolism; D007583:Jejunum / Q000378:metabolism; D007700:Kinetics; D008297:Male; D008954:Models, Biological; D019832:N-Methylscopolamine; D009536:Niacinamide / Q000031:analogs & derivatives / Q000378:metabolism; D012602:Scopolamine Derivatives / Q000378:metabolism; D013757:Tetraethylammonium Compounds / Q000378:metabolism*
chemical_list: D002412:Cations; D012602:Scopolamine Derivatives; D013757:Tetraethylammonium Compounds; D009536:Niacinamide; D019832:N-Methylscopolamine; C008472:N-methylnicotinamide