title: Depression of myocardial contractile function by propoxyphene and norpropoxyphene.
mesh_terms: D000818:Animals; D002415:Cats; D011431:Dextropropoxyphene / Q000031:analogs & derivatives* / Q000494:pharmacology*; D004347:Drug Interactions; D066298:In Vitro Techniques; D009020:Morphine / Q000494:pharmacology; D009200:Myocardial Contraction / Q000187:drug effects*; D009270:Naloxone / Q000494:pharmacology; D010210:Papillary Muscles / Q000187:drug effects
chemical_list: D009270:Naloxone; D009020:Morphine; C002756:norpropoxyphene; D011431:Dextropropoxyphene