Drugs For Treating Aids May Prevent People From Catching Aids
In one of the most promising developments in more than 20 years, scientists claim that drugs used to control HIV/AIDS in patients may also be effective in preventing the disease in the first place.
The drugs in question are tenofovir (Viread) and emtricitabine, or FTC (Emtriva), sold in combination as Truvada by Gilead Sciences Inc. Gilead is the California company best known for inventing Tamiflu.
Previous research has been aimed at finding a vaccine against HIV/AIDS, with the intention of conditioning the immune system against the disease. But these drugs work differently. They simply keep the virus from reproducing, and have already been used successfuly by health care workers to prevent them from being infected by the virus carried by patients.
This approach to fighting HIV/AIDS has been tempting researchers for many years, but has only recently become feasible as preventative drugs have been developed that are safe for non-infected persons to take. Previous drugs had unreasonable effects for uninfected persons.
That situation changed when Tenofovir came on the market in 2001....
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