How do oral contraceptives work?

If contraceptive measures are not taken in time during sexual intercourse and a woman happens to be in her ovulation period, her chances of pregnancy can almost reach 100%. For women who are not prepared to have children, they must take emergency contraceptive pills to avoid pregnancy. So what is the specific oral method of this type of drug? Next, I will give the editor some time to tell you the detailed answer.

1. Short-term oral contraceptives. The short-acting contraceptives used in China include contraceptive tablets No. 1 and No. 2, compound 18-methylethynylketone short-acting tablets, and oral contraceptive tablets No. 0, 1, and 2. When using, start taking the medicine from the day of menstruation, and start taking the medicine on the fifth day. The best time to take the medicine is before going to bed. Take one tablet a day for 22 consecutive days, which can prevent pregnancy for one month. Menstruation usually comes about 3 days after stopping the medication.

2. Long-term oral contraceptives. Commonly used long-acting contraceptives include: combined 18-methylnorgestrel long-acting oral contraceptive tablets, combined ethinyl estradiol long-acting contraceptive tablets, and combined 16-methylchlormadinone contraceptive tablets. Compound 18-methylnorgestrel: Take one tablet each on the 5th and 25th day from the day of menstruation. Starting from the date of the second dose, take one tablet every 30 days thereafter. Combined 16-times methylchlormadinone contraceptive tablets: Take one tablet on the fifth day from the day of menstruation, take the second tablet 20 days later, take the third tablet 20 days later, and take one tablet every other month thereafter.

3. Rapid-acting oral contraceptives. Commonly used fast-acting contraceptives include medroxyprogesterone tablets and norethindrone contraceptive tablets. Take one tablet every night after having sex, and continue taking it until the newlyweds separate or the visit to relatives is over. Take it again every day, and the shortest use is 14 tablets. When using norethindrone contraceptive tablets, take one tablet on the night of the wedding or visiting relatives, and take one tablet every night thereafter. If you have been living together for 1-10 days, you should take 10 tablets, if you have been living together for 2 weeks, you should take 14 tablets, and if you have been living together for one month, you should take 14 tablets. Then take oral contraceptive tablet No. 1 for 22 consecutive days.

After reading this, everyone should know how to take birth control pills, so in the future when you encounter emergencies, you can take the medicine according to the editor’s advice. If necessary, you can also consult a professional doctor so that the medicine can be effective. However, the editor reminds women not to take birth control pills frequently to avoid affecting their health.