Jochemsen R, Wesselman J G, Hermans J, van Boxtel C J, Breimer D D
Br J Clin Pharmacol. 1983;16 Suppl 2(Suppl 2):285S-290S. doi: 10.1111/j.1365-2125.1983.tb02302.x.
Pharmacokinetics and bioavailability of brotizolam after i.v. and oral administration were studied in healthy young volunteers. Kinetic parameters after i.v. administration were: volume of distribution 0.66 +/- 0.19 1/kg, total plasma clearance 113 +/- 28 ml/min, distribution half-life 11 +/- 6 min, and elimination half-life 4.8 +/- 1.4 h (mean values +/- s.d.). Kinetic parameters after oral administration were: absorption lag-time 8 +/- 12 min, absorption half-life 10 +/- 11 min, and elimination half-life 5.1 +/- 1.2 h (mean values +/- s.d.). Bioavailability of brotizolam was 70 +/- 22% when calculated by comparing oral and intravenous area-under-curve values, corrected for intra-individual half-life differences. An alternative calculation method, which is relatively independent of large clearance variations, provided a bioavailability of 70 +/- 24% (range: 47-117%).
在健康年轻志愿者中研究了静脉注射和口服布替唑仑后的药代动力学和生物利用度。静脉注射后的动力学参数为:分布容积0.66±0.19升/千克,总血浆清除率113±28毫升/分钟,分布半衰期11±6分钟,消除半衰期4.8±1.4小时(均值±标准差)。口服后的动力学参数为:吸收滞后时间8±12分钟,吸收半衰期10±11分钟,消除半衰期5.1±1.2小时(均值±标准差)。通过比较口服和静脉注射的曲线下面积值并校正个体内半衰期差异来计算,布替唑仑的生物利用度为70±22%。一种相对独立于较大清除率变化的替代计算方法得出的生物利用度为70±24%(范围:47 - 117%)。