Drug synergism (potentiation) in pain relief in man: papaverine and morphine.
D004357:Drug Synergism; D006801:Humans; D008297:Male; D009020:Morphine / Q000627:therapeutic use*; D010146:Pain; D010208:Papaverine / Q000494:pharmacology*
D009020:Morphine; D010208:Papaverine
MORPHINE/therapeutic use; PAPAVERINE/effects