Agonist and antagonist actions of morphine-like drugs on the guinea-pig isolated ileum.
D000700:Analgesics / Q000494:pharmacology*; D000818:Animals; D003496:Cyclazocine / Q000494:pharmacology; D004357:Drug Synergism; D006168:Guinea Pigs; D007082:Ileum / Q000187:drug effects*; D007977:Levallorphan / Q000494:pharmacology*; D007981:Levorphanol / Q000494:pharmacology*; D009020:Morphine / Q000494:pharmacology*; D009130:Muscle, Smooth / Q000187:drug effects*; D009269:Nalorphine / Q000494:pharmacology*; D009292:Narcotic Antagonists / Q000494:pharmacology*; D010423:Pentazocine / Q000494:pharmacology*; D010620:Phenazocine / Q000494:pharmacology*; D012018:Reflex / Q000187:drug effects
D000700:Analgesics; D009292:Narcotic Antagonists; D007981:Levorphanol; D007977:Levallorphan; D009020:Morphine; D010620:Phenazocine; D003496:Cyclazocine; D010423:Pentazocine; D009269:Nalorphine