The duration of action is usually 6 hours. During this time, washing which rinses the preparation is prohibited. Are spermicidal creams and gels safe? The disadvantages of spermicides include primarily : low effectiveness in preventing pregnancy - unfortunately, although spermicidal gels and foams are pharmacy products, they are not recommended as the only form of contraception; the risk of unwanted pregnancy is high, so people who choose this form of contraception should also use other…See More