Spermicides come in various forms including jellies, creams, foams, suppositories, tablets and soluble films. Foams come in aerosol containers with an applicator to insert the product into the vagina. The sheets are folded and inserted into the vagina. How well spermicides prevent pregnancy is highly variable depending on whether they are used correctly and consistently. Their effectiveness also depends upon whether they are used in addition to another barrier method, such as the diaphragm, cervical cap, or condom.
Spermicides can cause rash, irritation, or a burning sensation in either partner.
Whether they decrease a woman's risk of becoming infected with HIV is unclear. You can buy spermicides in pharmacies, supermarkets, and many convenience stores without a prescription. Tips for using spermicides Make sure you have a supply of spermicide on hand. The most common mistake is failure to use spermicide. When using film, make sure your hands are completely dry.