Alcohol and birth control pills are both metabolized by the liver, and taking them at the same time can easily increase the burden on the liver and affect the effectiveness of the pill, possibly leading to contraceptive failure. If you must take the pill after drinking, it is recommended that you take it at least four hours apart. Do not take the pill at the same time as other medications to avoid affecting the absorption and metabolism of the medication. Both emergency contraceptives and other types of contraceptives contain hormones. Do not take contraceptives frequently or in excess, otherwise they may easily affect the normal endocrine function of the ovaries and cause endocrine disorders. For contraceptive purposes, in addition to the pill, you can also use condoms, intrauterine devices, subcutaneous implants and other contraceptive measures.