The generic name of Dayin 35 is ethinyl estradiol cyproterone tablets, and the exact day to start taking it from the day of menstruation should be analyzed according to the specific situation.
1. If you have not used hormonal contraceptives before, you need to start taking them on day 1 of your menstrual cycle, or you can start taking them from day 2 to day 5, and you should take barrier contraception for the first 7 days of use.
2. If other hormonal contraceptives have been used before, you should start taking them immediately after you finish using the original contraceptive, or if you have a vaginal ring or transdermal patch before, you can start using it immediately after removing it.
3. If you were previously on progestin-only contraception, you can switch to ethinyl estradiol cyproterone tablets after stopping the pill. A barrier method of contraception is required for the first 7 days of use.
4. In the case of early pregnancy abortion, the drug can be taken immediately after the abortion, usually do not need other contraceptive methods.
Ethinyl estradiol cyproterone tablets can not be used in pregnancy, if pregnancy occurs during the medication, the drug should be immediately discontinued, lactation and thromboembolic disease, severe liver disease patients with liver function has not been restored to prohibit the use of the drug, children can only be used after menarche, the product can not be used for postmenopausal people.
Gastrointestinal disorders such as vomiting and diarrhea may occur with the use of this medication, and may also cause weight gain, breast enlargement, rash, urticaria, etc. If significant adverse reactions occur, seek medical attention to adjust the medication if necessary.
If you need to use medication, it is recommended to use medication under the guidance of a doctor, not blindly self-medication to avoid adverse effects.