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| | Ask the Experts: What is spermicide? How do you use it? teenwire.com |
 | | Spermicide foam, cream, jelly, film, and suppositories are inserted deep into the vagina shortly before intercourse. |
 | | Used alone, spermicides are among the least reliable methods of birth control ; even with perfect use, they are only up to 85 percent effective against pregnancy, and they offer no protection against sexually transmitted infections. |
 | | Also, be aware that using the spermicide nonoxynol-9 many times a day, by people at risk for HIV, or for anal sex, may irritate tissue and increase the risk of HIV and other infections. |
| www.teenwire.com /ask/2004/as-20040301p746-spermicide.php (234 words) |
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