[Studies on the effect of an opiate antagonist (lorfan) on the action of morphine during chronic administration in man].
D007977:Levallorphan; D009020:Morphine / Q000037:antagonists & inhibitors* / Q000494:pharmacology*; D009292:Narcotic Antagonists
D009292:Narcotic Antagonists; D007977:Levallorphan; D009020:Morphine
MORPHINE/antagonists; MORPHINE/pharmacology