OBJECTIVE： To study the pharmacokinetics and relative bioavalability of omeprazole capsules in humans.METHODS： 18 male healthy volunteers orally took domestic omeprazole capsules and losec capsulles(used as control)40mg respectively.Blood concentrations of drugs were determined by HPLC.RESULTS： Times to reach the peak levels of omeprazole and losec were （2.10± 0.64） h and （1.88± 0.70） h， the peak plasma concentrations were （895.64± 553.07） ng/ml and （974.67± 554.93） ng/ml and the areas under the drug concentration curves were （1 971.88± 1 220.98 ） ng/（h· ml） and （2 057.60± 1 306.32） ng/（h· ml） respectively.CONCLUSION： The two capsules have the same bioequivalence.

AIM To observe the long-term toxicities of reteplase(Ret). METHODS Rat was administrated by injection of vein on 14 consecutive days to macaca fasicular. RESULTS Ret 8.0 MIU?kg -1 to macaca fasicular did not show any toxicity. In 25.0 MIU?kg -1 and 80.0 MIU?kg -1 of doses, RBC, HGB and HCT of blood have significantly decreased. Feces of hidden blood test also showed positive response in some animals, meanwhile, Ret could reduce the content of plasma total protein. But these changes could have recovery in restoration period. In addition, in 8.0?25.0?80.0 MIU?kg -1 doses, Ret could significantly lengthen bleeding time and clotting time. The obvious toxic changes of coefficient and pathology in Ret 8.0?25.0?80.0 MIU?kg -1 groups were not found. CONCLUSION 8.0 MIU?kg -1 is a safety dosage by injection of vein. 25.0,80.0 MIU?kg -1 doses have certain toxic actions, such as anemia and bleeding, but these toxic effects were reversible.