How many days after finishing 21 days of Dianette will menstruation occur?

Diane refers to Ethinylestradiol and Cyproterone Acetate Tablets. After taking Ethinylestradiol and Cyproterone Acetate Tablets for 21 days, menstruation usually occurs approximately 7 days after discontinuing the medication in most cases. Ethinylestradiol and Cyproterone Acetate Tablets are hormonal medications used for oral contraception in females, but they can also be used to treat polycystic ovary syndrome (PCOS). During administration, they can reduce androgen levels, but continuous use should not exceed 6 months. Typically, they are prescribed to be taken starting from the 4th or 5th day of menstruation, with one course lasting 21 days. It is crucial to follow the doctor's instructions carefully and avoid missing any doses. Most females experience vaginal bleeding around 7 days after discontinuing the medication. This is often due to the estrogen and progestin content in Ethinylestradiol and Cyproterone Acetate Tablets. Upon discontinuation, the estrogen and progestin levels in the body drop sharply, leading to shedding of the endometrium and bleeding, known as withdrawal bleeding, which can be considered as a menstrual period.

If menstruation has not occurred within 10 days after stopping Ethinylestradiol and Cyproterone Acetate Tablets, it is recommended to promptly consult a doctor for a check-up, including B-mode ultrasound of uterine appendages, human chorionic gonadotropin (hCG) test, and sex hormone six-item test, among other relevant examinations. Treatment will be based on the results of these tests.