Impaired enzyme induction by rifampicin in the elderly.
D000328:Adult; D000368:Aged; D000983:Antipyrine / Q000378:metabolism*; D001711:Biotransformation / Q000187:drug effects; D004790:Enzyme Induction / Q000187:drug effects*; D006207:Half-Life; D006801:Humans; D007700:Kinetics; D008297:Male; D012293:Rifampin / Q000494:pharmacology*
D000983:Antipyrine; D012293:Rifampin