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What is the contraceptive sponge?

The contraceptive sponge (brand name Today Sponge) is a birth control device that’s inserted deep into the vagina before intercourse. It contains a spermicide, nonoxynol-9, which slows down sperm and helps prevent them from fertilizing the female egg. The sponge protects against pregnancy for up to 24 hours, no matter how many times you have intercourse. You must leave it in place for at least six hours but no longer than 30 hours after intercourse.

Studies show that the sponge is 89 to 91 percent effective in preventing pregnancy when used according to the product instructions. Since it has not been proven effective in helping prevent sexually transmitted diseases you should also protect yourself with a condom.

The Today Sponge is available in the U.S. once again. The previous manufacturer, Whitehall-Robbins, took it off the market in 1995 because of problems in the manufacturing plant. Allendale, the new manufacturer, bought the rights to produce the Today Sponge and made it available over-the-counter sometime in 2005.

Sources:
Contraceptive Technology. Ardent Media, 1998.
Today Sponge product information, Allendale Pharmaceuticals, 1999.
Micromedex Healthcare Series. Micromedex, Inc., 2001.

This answer updated10/3/2001.
This information updated 1/10/2007.