What is a contraceptive suppository?
Contraceptive suppositories are a type of topical contraceptive medication, classified as over-the-counter products used externally by women.
The main ingredients of contraceptive suppositories are nonoxynol-9 and oily excipients. Nonoxynol-9 is a non-ionic surfactant that works by reducing the surface tension of the sperm's lipid membrane and altering its osmotic pressure, thereby killing sperm or immobilizing them so they cannot enter the cervix and fertilize an egg, achieving contraception. Since the medication is placed deep inside the vagina and is not fully absorbed by the body, it generally does not affect the body's endocrine system. Fertility returns immediately after discontinuation, and due to minimal side effects, these suppositories are also suitable for mothers during postpartum contraception.
The advantages of contraceptive suppositories include simple application, no interference with sexual pleasure, and absence of side effects from the drug itself. The disadvantages are that their contraceptive effectiveness is lower than that of oral contraceptives or intrauterine devices (IUDs), and a small number of women may experience allergic reactions or mild irritation in the vaginal area.
It should be noted that women suffering from vaginitis, severe cervical erosion, excessive vaginal laxity, or uterine prolapse should avoid using contraceptive suppositories.