Birth control suppositories are generally referred to as nonoxynolone suppositories and are usually not used after their expiration date. The nonoxynolone pessary is a short-term contraceptive pill for women to use externally, usually administered vaginally. After being put in for 5-10 minutes to dissolve, you can have sex, and if you don’t within 30 minutes of being put in you need to put the pill in again. If the drug has expired, the properties of the drug may change and it is generally not to be used, not only is it less effective as a contraceptive, but it may also cause adverse reactions. The drug may cause allergic reactions to the female vagina and male penis after use, with symptoms of itching. A few people may also have localized symptoms of mild irritation or manifestations of increased vaginal discharge. It should be noted that the use of the drug is prohibited for people with malignant tumors of the reproductive tract and irregular vaginal bleeding. It is recommended to consult a professional doctor before use and not to use it blindly on your own.