[The antagonism of "Lethidron" (N-alyl-morphine) against morphine and methadone in intraduodenal application].
D008691:Methadone / Q000037:antagonists & inhibitors*; D009020:Morphine; D009269:Nalorphine / Q000494:pharmacology*
D009020:Morphine; D009269:Nalorphine; D008691:Methadone
METHADONE/antagonists; NALORPHINE/pharmacology