Birth control pills and vitamin C together are very good. There are roughly three kinds of contraceptive pill ingredients in the clinic: mainly contraceptive pills that consist of progestin, combined estrogen and progestin or mifepristone. These contraceptives have a great impact on the body, especially long-acting contraceptives and emergency contraceptives, which tend to disrupt women’s endocrine secretion, cause gastrointestinal reactions, cause liver damage and abnormal coagulation function. Vitamin C supplementation while taking birth control pills can promote the absorption of birth control pills and reduce the side effects of birth control pills, especially the gastrointestinal reactions. Therefore, in clinical practice, patients are advised to take the pill together with vitamin C. After using contraceptive pills and vitamin C must be careful not to eat and drink water within two hours to maintain an empty stomach, which is conducive to the absorption of the drug.