title: Biliary excretion of methadone by the rat: identification of a para-hydroxylated major metabolite.
mesh_terms: D000818:Animals; D001646:Bile / Q000378:metabolism*; D001711:Biotransformation; D002849:Chromatography, Gas; D002855:Chromatography, Thin Layer; D006900:Hydroxylation; D007700:Kinetics; D008055:Lipids; D008297:Male; D013058:Mass Spectrometry; D008691:Methadone / Q000378:metabolism*; D051381:Rats; D012995:Solubility
chemical_list: D008055:Lipids; D008691:Methadone