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Nov 28, · In theory, it seems to make sense: If a condom contains spermicide—a chemical used to prevent pregnancy by wiping out sperm—it should be more effective, since the substance would kill . Although spermicide does appear to boost the effectiveness of diaphragms, research on condoms and spermicide suggests that it does not increase condom effectiveness. Additionally, spermicide does .
Spermicides have a typical user failure rate of 21% and condoms 12%; combined, the 1st year probability of failure among typical users is %. Under perfect use, where there is correct use for Cited by: Diaphragm/spermicide use increases the risk of urinary tract infection (UTI). To determine whether spermicide-coated condoms are also associated with an increased risk of UTI, the authors Cited by:
The spermicide, Nonoxynol-9, reduces the number of active sperm, thereby decreasing the risk of pregnancy if erection is lost before withdrawal and some semen spills outside the condom. However, . Jan 18, · A spermicide is an over-the-counter form of birth control that prevents pregnancy by blocking the entrance to the cervix so sperm can’t get to an egg. It also kills the sperm itself. .
The Pearl index indicated that spermicide alone is apparently efficacious, but the efficacy per contact cannot be quantified with this approach. Maximum likelihood estimates for the efficacy of nonoxynol-9 alone and condoms . Spermicides contain chemicals to stop sperm from getting to an egg. They come in several different forms: cream, gel, foam, film, and suppositories. Spermicides can be used alone but are more effective when used with another method of birth control, such as a condom or diaphragm. Spermicides .