Shanghai Worldbest Anhui Jinhui Pharmaceutical Co. Ltd.

The main purpose of the study is to study the pharmacokinetics of the test preparation Dienogest Tablets (Specification: 2mg, produced by Shanghai Huayuan Anhui Jinhui Pharmaceutical Co., Ltd.) and the reference preparation Dienogest Tablets (trade name: Visanne, specification: 2mg, certified by Jenapharm GmbH & CO.KG) in healthy adult female subjects after a single oral administration in the fasting/postprandial state, and to evaluate the bioequivalence of the two preparations in the fasting/postprandial state. Secondary purpose of the study: to observe the safety of the test preparation Dienogest Tablets and the reference preparation Dienogest Tablets (Visanne) in healthy adult female subjects.