Yosmin generic name drospirenone ethinyl estradiol tablets, after eating drospirenone ethinyl estradiol tablets did not come to menstruation to consider with the stopping time is too short, pregnancy, ovarian hypogonadism and so on related. 1. stopping time is too short: drospirenone ethinyl estradiol tablets are estrogen-progestin preparations, so that the endothelium endocrine phase reaction, after stopping the drug in vivo progesterone levels drop to a certain level before the endothelium can be stripped, so the general stopping time within 7 days of the menstrual period is normal, if the time is too short without too much tension. 2. Pregnancy: As drospirenone ethinyl estradiol tablets are short-acting contraceptives, some women take the drug for contraception, if the patient is pregnant, the level of estrogen and progesterone in the body rises significantly, which inhibits the function of the gonadal axis, the follicles no longer appear cyclical growth and development and menopause. 3. Ovarian hypoplasia: For patients with ovarian hypoplasia, the level of estrogen in the body has decreased significantly, and the endometrium is relatively thin, while the menstrual blood is formed by the stripping of the endometrium, so at this time the patient lacks the material basis for menstrual blood and does not come to menstruation. For women who do not have menstruation after taking drospirenone ethinyl estradiol tablets, it is recommended that the patient go to the gynecology department of the regular hospital to improve ultrasound, sex hormones and other related examinations, and to clarify the cause of the disease under the guidance of the doctor to actively treat.