Search results
Results From The WOW.Com Content Network
Spermicide is a contraceptive substance that destroys sperm, inserted vaginally prior to intercourse to prevent pregnancy. As a contraceptive, spermicide may be used alone. However, the pregnancy rate experienced by couples using only spermicide is higher than that of couples using other methods.
Nonoxynol-9 is a common ingredient of most vaginal and anal lubricants due to its spermicidal properties. A 2004 study found that over a six-month period, the typical-use failure rates for five nonoxynol-9 vaginal contraceptives (film, suppository, and gels at three different concentrations) ranged from 10% to 20%.
Spermicide – a contraceptive agent to render sperm inert and prevent fertilization of an egg. Teniacide (also taeniacide, tenicide) – a chemical agent that kills tape worms. Theriocide – the act of killing an animal by a human (Ancient Greek: therion "wild animal, beast"). Vermicide – an agent used to kill parasitic intestinal worms.
The contraceptive sponge combines barrier and spermicidal methods to prevent conception. Sponges work in two ways. First, the sponge is inserted into the vagina, so it can cover the cervix and prevent any sperm from entering the uterus. Secondly, the sponge contains spermicide. [2]
Numerous plant extracts and naturally-derived molecules have been preliminarily evaluated for use as male contraceptives or spermicides. While some of these extracts have become the basis of more specific molecular drug development campaigns mentioned earlier in this article, others require more work to clarify the active ingredient , or ...
Main page; Contents; Current events; Random article; About Wikipedia; Contact us
From Wikipedia, the free encyclopedia. Redirect page
The history of intrauterine devices dates back to the early 20th century. Unlike modern intrauterine devices, early interuterine (from Latin inter-, meaning "between", as opposed to intra-) devices crossed both the vagina and the uterus, causing a high rate of pelvic inflammatory disease. The first IUD was developed in 1909 by the German ...