Tenofovir Drug

"Taking a T." That's what HIV-negative gay men call the growing practice of downing the AIDS drug tenofovir and, with fingers crossed, hoping it protects them from the virus during unprotected sex. It's being sold in packets along with Viagra and Ecstasy in gay dance clubs -- and even prescribed by physicians, say doctors and AIDS prevention experts. The trend has alarmed public health officials. There is no proof that tenofovir protects against HIV transmission, they say.