title: Interactions of morphine and nalorphine with physostigmine on operant behavior in the rat.
mesh_terms: D000818:Animals; D001362:Avoidance Learning / Q000187:drug effects*; D002800:Cholinesterase Inhibitors / Q000494:pharmacology; D003216:Conditioning, Operant / Q000187:drug effects; D004347:Drug Interactions; D004924:Escape Reaction / Q000187:drug effects; D008297:Male; D009020:Morphine / Q000494:pharmacology*; D009269:Nalorphine / Q000494:pharmacology*; D010830:Physostigmine / Q000494:pharmacology*; D051381:Rats
chemical_list: D002800:Cholinesterase Inhibitors; D009020:Morphine; D010830:Physostigmine; D009269:Nalorphine