The main reason why it is recommended to take Eusemide at a fixed time is that any drug has a half-life and will reach the corresponding blood concentration after a certain period of time and take effect. If Eusemide is taken orally at a fixed time every day, the blood concentration will be maintained in a relatively balanced state and will better play the role of contraception or better play the role of menstrual regulation. In addition, irregular vaginal bleeding may occur when taking Eusebio, you can continue to use the medication and most of the irregular bleeding will stop, it is also recommended to take it under the guidance of a doctor, for example, if you have uterine fibroids, thrombotic tendency, breast hyperplasia, endometrial cancer, etc., you should not take Eusebio.