Eusemide, also known as drospirenone ethinyl estradiol tablets, is a combination of birth control pills, mainly used for female contraception or regulation of menstruation, usually 3-7 days after stopping the pill. Eusemide regulates the menstrual cycle by inhibiting ovulation and is usually taken for 21 days and then stopped for 7 days, usually within 7 days of stopping the pill. If the drug is used to regulate menstruation, it usually takes 2-3 months to have a significant effect. Patients should also have their liver and kidney function and blood clotting function checked regularly while taking the medication. In addition, since this drug is a hormonal drug, patients should take it regularly and try not to miss doses to avoid irregular vaginal bleeding. If the missed dose occurs within 12 hours, the patient can take one more tablet and continue to take it according to the cycle. If the interval between missed doses is longer, more than 24 hours, you need to take Eusebio again on a regular cycle in order to provide contraception.