플루옥세틴 캅셀제의 지원자에 대한 생체이용율 및 대사율 비교

• 영문명: Comparative Bioavailability and Metabolism of Two Capsule Formulations of Fluoxetine in Human Volunteers
• 발행기관: 대한약학회
• 저자명: 강원구(Won Ku Kang) 박용순(Yong Soon Park) 조규행(Gyu Haeng Cho) 최준식(Jun Sik Choi) 권광일(Kwang Il Kwon)
• 간행물 정보: 『약학회지』제42권 제5호 (1998년), 513~518쪽, 전체 6쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1998.10.31

영문 초록

Fluoxetine is a nontricyclic antidepressant which blocks serotonin reuptake selectively. Its N-demethyl metabolite, norfluoxetine is also selective inhibitor of serotonin uptake. This study was carried out to compare the bioavailability of Myung-in fluoxetine (20mg/cap.) with that of Prozac(R). The bioavailability was conducted on 24 healthy volunteers who received a single dose (80mg) of each drug in the fasting state, in a randomized balanced 2-way crossover design. After closing, serial blood samples were collected for a period of 48 hours, Plasma was analyzed for fluoxetine and norfluoxetine by a sensitive and validated HPLC assay. The major pharmacokinetic parameters (AUC0-48 hr, Cmax, Tmax , AUCinf., MRT. T1/2, Vd and Cl) were, calculated from the plasma fluoxetine concentration-time data of each volunteer. The microcomputer program, `WinNonlin` was used for compartmental analysis. A two-compartment model with first-order input, first-order output and no lag time was chosen as the most appropriate pharmacokinetic model. The data were best described by using a weighting factor of l/y2. Though the plasma fluoxetine concentrations of Myung-in fluoxetine were higher than those of Prozac(R) at all observed time from 7.9% to 16.9% (P<0.05 at 6.7 and 10 hr), the bioavailability of Myung-in fluoxetine appeared to be bioequivalent with that of Prozac(R). There were no statistical significant differences between the two drugs in all pharmacokinetic parameters including AUC0-48 hr of norfluoxetine.

키워드

Fluoxetine norfluoxetine bioavailability pharmacokinetic parameters HPLC WinNonlin.