If it is a compound short-acting contraceptive pill, in the absence of contraindications, it can be taken regularly within a year; if it is an emergency contraceptive pill, it is not recommended to take it more than three times a year; long-acting contraceptive pills have a greater adverse reaction, which is now less common in the clinic. Contraceptives can be divided into short-acting contraceptives, long-acting contraceptives and emergency contraceptives, of which long-acting contraceptives due to adverse reactions, now clinically less common. 1. Short-acting contraceptive pills: the main ingredient is estrogen and progesterone, need to be taken every day, 28 days for a cycle, so there is no such thing as a few times a year you can take the drug. In the absence of contraindications to the use of the drug, it can be taken regularly within a year. 2. Emergency contraceptive pills: Because this drug contains a large number of progesterone, frequent use may have a serious impact on ovarian function, it is generally recommended that the number of times a year no more than 3 times. In addition, it should be noted that if there is a need for contraception, it is recommended to consult a professional obstetrician and gynecologist to find a suitable contraceptive method for yourself.