Proper vitamin c supplementation while taking the pill can effectively relieve some of the side effects caused by taking the pill. However, it is best not to take the pill and vitamin c at the same time. You can take the pill and vitamin c at different times of the same day. Taking vitamin c and birth control pills at the same time may cause some drug interactions. The main ingredient of birth control pills is high-dose progestin, or a combination of estrogen and progestin. Taking the pill too frequently may affect the normal function of the ovaries, causing premature ovarian failure, endocrine dysfunction and affecting normal menstruation and reproductive function. Take appropriate vitamin c supplements during the pill. The antioxidant effect of vitamin c can prevent and slow down the aging of the ovaries.