Birth Control Method
Spermicide
Description
Contraceptive foam, a vaginal spermicide a woman places into her vagina with an applicator, has two contraceptive effects: it kills or destroys sperm and prevents sperm from reaching the egg by blocking the opening to the cervical canal.
How It Works
Follow the package instructions for filling the applicator. Gently insert the applicator completely into the vagina, and then withdraw it about one-half inch. Depress the plunger fully, and then withdraw it. Complete information about this contraceptive, including how much to use, is available from your clinician or from the package insert accompanying the foam.
Should You Use It?
If you have a regular partner who has tested negative for HIV, contraceptive foam may be a great contraceptive choice for you. However, be aware that the foam doesn't taste very good, so if you enjoy having oral sex performed, you may want to postpone inserting the foam until just prior to intercourse, which can interrupt sex.
Effectiveness
With consistent and correct use, contraceptive foam is 94% effective; however, most couples will find contraceptive foam to be 50 to 80% effective at preventing pregnancy. Foam is more effective in preventing pregnancy when used with condoms.
STI Protection
Contraceptive foam may prevent the transmission of some sexually transmitted infections (STIs) in some women, but it may not be an effective form of protection against HIV. Women who frequently use spermicides may experience disruption in the vaginal skin, increasing the risk of sexually transmitted infections and abnormal pap results.
Advantages
- Gives the woman control over contraception.
- Available over the counter without a visit to a clinician.
- Can be inserted up to 20 minutes before sexual intercourse and is effective immediately.
- An extremely safe and flexible form of birth control -- there are no hormones involved.
- The man's penis can remain inside the vagina after ejaculation.
- Foam adds lubrication and moisture.
- Foam reduces the risk of getting some STIs.
Disadvantages
- Can be irritating to the vagina and some people feel that it is messy. Use of spermicide may increase the risk of irritation and allergic reactions, and may increase the risk of urinary tract infection.
- Some women do not like putting an applicator into the vagina.
- Not an effective form of protection against HIV.
- The taste of foam can be unpleasant.
Where to Buy It
Foam is sold at most drugstores and some supermarkets. Call ahead to make sure the store sells it.
Follow Up
After intercourse, use a mini-pad or a panty-liner to catch any foam that might drip out. If you decide to douche, wait at least eight hours after intercourse before doing so.
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