New warning for nonoxynol 9 OTC contraceptives in US

Nonoxynol 9 or N9 in the widely available stand-alone contraceptive products do not protect against sexually transmitted diseases, including HIV infection. – The U.S. Food and Drug Administration (FDA) issued a final rule that requires that manufacturers of over-the-counter (OTC) stand-alone vaginal contraceptive and spermicidal products containing the chemical ingredient nonoxynol 9 (N9) include a warning that the chemical N9 does not provide protection against infection from HIV (the virus that causes AIDS) or other sexually transmitted diseases (STDs).