Morphine and delta 9-tetrahydrocannabinol: tolerance to the stimulus effects.
D000818:Animals; D002188:Cannabis / Q000008:administration & dosage / Q000494:pharmacology*; D004193:Discrimination Learning / Q000187:drug effects; D004192:Discrimination, Psychological / Q000187:drug effects; D013759:Dronabinol / Q000494:pharmacology; D004336:Drug Antagonism; D004361:Drug Tolerance; D006801:Humans; D008297:Male; D009020:Morphine / Q000008:administration & dosage / Q000494:pharmacology*; D009270:Naloxone / Q000494:pharmacology; D008517:Phytotherapy; D051381:Rats; D012054:Reinforcement, Psychology; D013375:Substance Withdrawal Syndrome; D019966:Substance-Related Disorders
D009270:Naloxone; D009020:Morphine; D013759:Dronabinol