How effective are spermicides as a contraception method?
A spermicide is highly effective when used with another barrier method such as a condom, diaphragm or cervical cap. A gel or cream product work best with these barrier methods. Some products like the gel and cream are ready to go to work immediately after you apply them, while others take time to become effective. If you are using a film product or a suppository you will have to wait anywhere from 5 to 15 minutes before having intercourse for it to be effective. When used alone, spermicides are about 79-94% effective in preventing pregnancy.
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