Triples with object route of administration: oral study duration: Subjects received triazolam 0.25 mg alone and another 0.25-mg dose after 4 weeks of citalopram 20 mg/day for 1 week, followed by 3 weeks of citalopram 40 mg/day population: 17 (7 men and 10 women) completed the study) tested for known CYP450 polymorphisms? ages: 18 - 31 description: The pharmacokinetics of triazolam and its metabolite alpha-hydroxytriazolam were unchanged by citalopram coadministration.