The main sperm-killing agent in these products (in this country) is nonoxynol-9. It not only kills sperm, but some sexually transmitted organisms as well. While spermicides can't prevent the spread of sexually transmitted diseases 100%, they can reduce the spread—particularly of bacterial STDs like gonorrhea and chlamydia, which pose serious problems for women's future fertility. There is some controversy over—and ongoing research into—the issue of spermicides and the spread of certain viral sexually transmitted diseases, including human papillomavirus (HPV—the virus that causes genital warts and sometimes cervical cancer) and human immunodeficiency virus (HIV—the virus that causes' AIDS). There is some unconfirmed evidence that spermicides may irritate the skin of the vulva, vagina and cervix in such a way that it's easier for these viruses to gain entry into the female body.
A generic drug is made with the same active ingredients and is available in thesame strength and dosage form as the equivalent brand-name product. Generic drugs produce the same effects in the body as the brand-name drugs, because both contain the identical active ingredients...
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