When used consistently and correctly each time, a condom and spermicide together can be 95 to 99% effective in preventing pregnancy. Condoms and spermicides are also effective in protecting against STIs, including chlamydia, gonorrhea, genital herpes, and HIV. Nov 06, · A spermicide condom is coated with a chemical that kills sperm before they enter the uterus. Spermicide usually comes in the form of a jelly, although it Author: Bethany Cadman.
Apr 25, · Condoms are a form of barrier birth control, and they come in many varieties. Some condoms come coated with spermicide, which is a type of Author: Corey Whelan.