Description of the Contraceptive Sponge: The contraceptive sponge is a soft round piece of foam about two inches in diameter, that looks a little like a miniature donut. It contains the spermicide Nonoxynl-9 and provides contraception both as a barrier and by essentially killing sperm. The sponge can only be used once, and it provides up to twelve hours of protection. When used on its own the sponge does not provide protection from STDs, including HIV.
How to Use the Contraceptive Sponge: You have to moisten the sponge with water prior to use. The sponge is then inserted deep into the vagina and it covers the cervix. Each sponge provides twenty four hours of contraceptive protection. This is one of the great benefits of the sponge; you can have multiple sexual encounters without using a new sponge, within a twenty four hour period. You must leave the sponge in at least six hours after your last intercourse.
Failure Rates for the Contraceptive Sponge: Interestingly there is a difference in effectiveness for women who have and have not given birth (slightly less effective for women who have given birth). The primary disadvantage of the sponge is that, used on its own, it is less effective than other forms of contraception, with sixteen out of one hundred women becoming pregnant with typical use of the sponge. That number goes down to nine out of one hundred with perfect use.
Cost of the Contraceptive Sponge: Between $8-$12 for a pack of three sponges.
Where To Get the Contraceptive Sponge: The sponge is easily available without a prescription at local drugstores and online retailers.
Side Effects of the Contraceptive Sponge: Most women have no side effects with the sponge. But some do experience vaginal irritation, which could be the sign of an allergic reaction.
Things to Watch Out for with the Contraceptive Sponge:
- Because of its lower effectiveness than other forms of contraception, it is highly recommended that you use the sponge in conjunction with another form of birth control (e.g. condoms).
- You can keep the sponge in for up to thirty hours, but it is only effective for a twenty four hour period
Who Should Not Use the Contraceptive Sponge:
- Women with allergies to polyurethane or spermicide (N-9)
- You should not use the sponge if you have any vaginal bleeding or irritation.
- You should not use the sponge during menstruation
Going Off the Contraceptive Sponge: One of the major benefits of the sponge is that it has no impact on your hormones or menstrual cycle, and going off it is as easy as stopping using it as your form of birth control.
Contraception Information on About.com:
The following information is compiled from a variety of sources, including the CDC, information from drug manufacturers, Planned Parenthood, and Family Health International.
We strive to keep this information up to date, but new studies and information about side effects and effectiveness may not be reflected immediately in this information. This should be used as a guide only, and a health care professional should be consulted when considering a new or changed contraceptive method.
Updated December 18, 2005.
