Contraceptive Sponge Contains Spermicide
Diaphragm or cervical cap—Before sexual intercourse, the diaphragm or cap is inserted in the vagina with spermicide to block or kill sperm. These methods are prescribed by a health care provider. Typical use failure rate for the diaphragm: 17%. 1 Typical use failure rate for the cervical cap: 22%. Sponge—The contraceptive sponge contains spermicide and is placed in the vagina where it fits over the cervix. The sponge works for up to 24 hours and must be left in the vagina for at least 6 hours after the last act of intercourse, at which time it is removed and discarded. Typical use failure rate: 17%. |
Source: Centers for Disease Control and Prevention (CDC)