title: Epimeric forms of quaternary derivatives of atropine.
mesh_terms: D000818:Animals; D001285:Atropine / Q000494:pharmacology; D001338:Autonomic Fibers, Postganglionic / Q000187:drug effects; D055598:Chemical Phenomena; D002621:Chemistry; D006168:Guinea Pigs; D007082:Ileum / Q000187:drug effects; D066298:In Vitro Techniques; D007536:Isomerism; D009682:Magnetic Resonance Spectroscopy; D009119:Muscle Contraction / Q000187:drug effects; D000644:Quaternary Ammonium Compounds / Q000494:pharmacology; D011950:Receptors, Cholinergic / Q000187:drug effects; D012601:Scopolamine; D013053:Spectrophotometry
chemical_list: D000644:Quaternary Ammonium Compounds; D011950:Receptors, Cholinergic; D001285:Atropine; D012601:Scopolamine