How Well Does Spermicide Work? So, what is spermicide exactly? Spermicide definition is - a preparation or substance (such as nonoxynol-9) used to kill sperm. What exactly is spermicide? More spermicide should be used if more than 1 hour passes before sex, or if a couple is going to have sex again. Spermicide can be purchased as a cream or jelly that is applied onto a diaphragm or cervical cap or directly into the vagina via a special applicator. For repeated sex, use additional spermicide. It usually comes in the form of cream, gel, foam, film or suppositories. Spermicide is a chemical used to reduce the number of living sperm. It also kills the sperm itself. Spermicide is a contraceptive substance that destroys sperm, inserted vaginally prior to intercourse to prevent pregnancy.As a contraceptive, spermicide may be used alone. Spermicides contain chemicals to stop sperm from getting to an egg. The main chemical in spermicide is Nonoxynol-9, which is a very harsh detergent like bleach. However, the pregnancy rate experienced by couples using only spermicide is higher than that of couples using other methods. But, to be more effective, you can combine it with other birth control methods, like a condom or female condom.You must always use spermicide with a diaphragm or cervical cap. a substance that kills sperm, inserted vaginally prior to intercourse to prevent pregnancy. Must Watch. Spermicide is a non-hormonal birth control method with chemicals that prevent sperm from reaching an egg after sex. Report warns of 'emboldened' domestic terrorists. Spermicide definition, a sperm-killing agent, especially a commercial birth-control preparation, usually a cream or jelly. Artist uses salt to create tiny Ganesha sculptures. PROS. spermicide definition: 1. a substance that kills sperm, used especially on condoms or by a woman before she has sex in…. The title “What is spermicide”, might look somehow scary in the first sight. According to the CDC, it’s only about 28 percent effective for people who use it as birth control.. As a spermicide, it attacks the acrosomal membranes of the sperm, causing the sperm to be immobilized. Spermicide can be used by itself. … Do not douche or rinse the vagina during this time. One dose of spermicide usually lasts 1 hour. Additionally, you can find spermicide available in a suppository and as a contraceptive film. The effective matter in it comes in the form of medications. Some types of spermicide … They come in several different forms: cream, gel, foam, film, and suppositories. After sex, the spermicide has to remain in place for 6-8 hours to make sure the sperm are killed. Nevertheless, it is better than taking no birth control at all, moreover, women can use spermicides instead of OCP (Oral contraceptive pills) which have side effects. The advantages of a spermicide include additional lubrication and possibly improved efficacy. The fewer sperm swimming around, the less likely you are to get pregnant. What is spermicide? It comes in many forms: cream foam gel suppository film Some people use spermicide alone. Some condoms come with spermicide in their lubricant. Nonoxynol-9 is the main ingredient in all of them. Spermicides can be used alone but are more effective when used with another method of birth control, such as a condom or diaphragm. Spermicide. Either partner can buy without prescription at drugstores and many stores. Learn what spermicide is in this Howcast video about birth control. See All. Spermicide (in any form) is placed deep inside the vagina and works by killing sperm that touches it before the sperm can reach an egg. For 6-8 hours to make a barrier method more effective, but it also... 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