Tolerance to opioid narcotics. I. Tolerance to the "running fit" caused by levorphanol in the mouse.
D000661:Amphetamine / Q000494:pharmacology; D000698:Analgesia; D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects*; D004361:Drug Tolerance; D007981:Levorphanol / Q000008:administration & dosage / Q000494:pharmacology*; D051379:Mice; D009020:Morphine / Q000494:pharmacology; D009269:Nalorphine / Q000494:pharmacology; D013237:Stereoisomerism
D007981:Levorphanol; D009020:Morphine; D000661:Amphetamine; D009269:Nalorphine