Spermicides are substances which inactivate sperm still before they enter into the uterus. They can be very various forms: cream, gel, foam, vaginal contraceptive film, suppository and a tablet. A plenty spermicides contains in the United States chemical nonoxynol-9, it and kills sperm.
Norm of efficiency
As a method of contraception, it is possible to use only spermicides, but the greater effect reach at sharing with other method of a barrier, for example with the condom, the diaphragm or the cervical cap. Typical norm of efficiency spermicides, as unique method of the barrier, is 71 percent In other words, 29 from 100 women who use it within one year becomes to pregnant women. Vaginal douches contained spermicidal agents there is no reliable contraceptive means, that douching after sex too late prevents hit of sperm in cervix.
Side effects and risk for health. Spermicidal agents can irritate the vagina. Some women can be sensitive to nonoxynol-9. It is possible also, that spermicides destroy normal bacterial colonies of a vagina and by that conduct to the increased sphere of action of a uric infection of the treatise. Cannot spermicides and protect against, containing nonoxynol-9 do not protect against HIV/AIDS and other STDs. The vaginal irritation from spermicides can increase risk STDs actually.
 How to use spermicide correctly
If your choice has stopped on spermicides, you insert spermicidal the agent into a vagina, by means of your fingers or the applicator, having read before it manual on use of the product. Efficiency of all forms spermicides becomes much higher, if you apply it not less than one hour before sex. Foams and gels suggest give immediate protection. And suppository and vaginal contraceptive films to insert it is necessary minimum 15 minutes prior to sex.
We submit to you some additional helps of use spermicide
• Gel, cream or foam. Fill the applicator and insert it into your vagina as far as it will be convenient to go. To release the gel, cream or foam push the plunger on the applicator Spermicides should be close to yours cervix.
• Suppository. Remove wrapper, and move suppository to your vagina. Move it as far as you can on a return wall of your vagina. So that suppository it was found on or about yours cervix.
• Film. Your fingers should be necessarily dry. Place one sheet of film on your finger and move it as far as you can on the return wall of your vagina. Film should rest on or near your cervix.
Necessary is new application before each sexual act. Be cautious to not wash off spermicides, it is especial within at least six hours after contact.
Cost and suitability
Cost spermicides makes approximately from 1 $ till 1.50 $. It depends on type spermicides which you use. You can buy them without the instruction of the doctor in drugstores and drugstores drugstores.
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