During the period of vacation, i.e. menstruation, Dinogestrel tablets must be taken during menstruation, and should be used in accordance with the doctor’s instructions. Dinogestrel tablets belong to progesterone, which can inhibit the function of the ovary, have an inhibitory effect on the proliferation of endometrial cells, reduce the pain caused by endometriosis, and make the lesion shrink. It is used for the treatment of endometriosis. The instructions state that the product must be taken starting on days 2-5 of the menstrual cycle. It is not advisable to use hormonal contraception during the use of the drug. Adverse reactions to Dinogestrel tablets include headache, breast swelling, breast pain, amenorrhea, and irregular bleeding. It is contraindicated in people with active venous thromboembolic disease, arterial and cardiovascular diseases, vasculopathic diabetes mellitus, severe liver disease, hepatic tumors, and people who are allergic to the product. The drug should be used under medical supervision.