Shanghai New Asiatic Pharmaceutical Minhang Co. Ltd.

1. Primary objective To compare the clinical contraceptive efficacy of acetic acid contraceptive gel and nonoxynol gel in Chinese couples of childbearing age. 2. Secondary objective To compare the safety and acceptability of acetic acid contraceptive gel and nonoxynol gel.

Primary objective: To evaluate the safety and tolerability of acetic acid contraceptive gel after a single administration in healthy Chinese adult female subjects. Secondary objective: To evaluate the effect of acetic acid contraceptive gel on vaginal pH after a single administration.

To compare the differences in absorption extent and rate of Benazepril Hydrochloride Tablets (Specification: 10 mg, test preparation) produced by Shanghai Xinya Pharmaceutical Minhang Co., Ltd. and Benazepril Hydrochloride Tablets (Specification: 10 mg, reference preparation) produced by MEDA Pharma GmbH & Co. KG in healthy subjects under the condition of single administration after meal. The main pharmacokinetic parameters were used to evaluate whether the two were bioequivalent, providing a basis for the registration application of the test preparation. The safety of Benazepril Hydrochloride Tablets was evaluated by observing safety indicators.