CHAPTER 15 - Spermicides and Diaphragms
- Sperm-killing substances inserted deep in the vagina, near the cervix, before sex.
- Nonoxynol-9 is most widely used.
- Others include benzalkonium chloride, chlorhexidine, menfegol, octoxynol-9, and sodium docusate.
- Available in foaming tablets, melting or foaming suppositories, cans of pressurized foam, melting film, jelly, and cream.
- Jellies, creams, and foam from cans can be used alone, with a diaphragm, or with condoms.
- Films, suppositories, foaming tablets, or foaming suppositories can be used alone or with condoms.
- Work by causing the membrane of sperm cells to break, killing them or slowing their movement. This keeps sperm from meeting an egg.