Da Vinci 35 is a short-acting contraceptive pill that is used clinically to regulate menstruation in addition to contraception, and also for the treatment of hyperandrogenemia caused by polycystic ovary syndrome. It is used for contraception and treatment of hyperandrogenemia. The specific use of the pill is to take it orally once a day for 21 days on the 5th day of menstruation, and to stop taking it 3-7 days after menstruation. Since short-acting contraceptives can also cause liver and kidney damage when taken for a long time, it is recommended to pay attention to the changes in liver function and kidney function after taking the pill, and it is recommended to review liver and kidney function after 2 months of taking the pill.