盐酸拉贝洛尔缓释片及其药动学研究
Study on Sustained Release Tablets of Labetalol Hydrochloride and its Human Pharmacokinetics
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摘要: 研制了盐酸拉贝洛尔缓释片,研究了其人体内药物动力学。缓释片体外可维持释药12h,释药行为可用Higuchi方程来描述,溶出速度常数为4.26min ̄(-1/2);其体内药动学过程符合一级吸收单室模型,药动学参数为:Ka=1.71h ̄(-1),K=0.1248h ̄(-1),Cmax=61.93ng/ml,Tmax=1.89h,AUC ̄(0→∞)=603.9ng·h/ml。