Yosmin refers to drospirenone ethinyl estradiol tablets, which can be taken after menstruation, but it may be better to try to take them on the 1st day of menstruation. Drospirenone ethinyl estradiol tablets are short-acting contraceptives and need to be taken from day 1 of the natural menstrual cycle. Some female patients may experience menstrual disorders and are unable to determine the exact time of their natural menstrual cycle, and may also need to take the pill after their period. If the menstrual cycle is relatively regular, try to take it on day 1 of the menstrual cycle. Adverse reactions such as nausea, breast pain, and thrombophilia may occur while drospirenone ethinyl estradiol tablets are being taken by female patients. It is contraindicated in patients who are allergic to drospirenone ethinyl estradiol tablets and its auxiliary components. This drug requires the application of drospirenone ethinyl estradiol tablets under the supervision of a specialized doctor, depending on the specific condition.