Twelve young ( 18-40 years ) and 12 elderly ( > 65 years and < / = 85 years ) subjects received a single 800-mg oral dose of telithromycin or an intravenous infusion of 400 mg ( young subjects ) or 480 mg ( elderly subjects ) of telithromycin over 2.5 h in two treatment periods , separated by a 1-week washout period .
