Vitamin C does not reduce the side effects of birth control pills. Because the main ingredients of birth control pills are estrogen and progesterone, and the content is relatively large, it is easy to affect endocrine. If you take contraceptive pills regularly, especially emergency contraceptive pills or long-acting contraceptive pills, you may have menstrual disorders and endocrine disorders, which are not side effects that can be alleviated by vitamin C. Vitamin C helps to improve the body’s immune function, but it has no effect on the side effects of birth control pills. You should choose your birth control pills wisely according to your specific situation, and you can put the side effects of birth control pills to reduce. There are also some women who experience nausea and vomiting after taking contraceptive pills, which can be taken after meals.