The Food and Drug Administration (FDA) has approved the sale of Atripla, a once-a-day pills that contains three FDA-approved drugs that can be taken in a single dose.

The "cocktail" was approved for sale by the FDA on Wednesday and will be made available within seven working days. The new drug is expected to be a big help to HIV-positive patients

The U.S. Food and Drug Administration tentatively approves three antiretroviral drugs that are used together to treat HIV/AIDS.

The regimen consists of lamivudine/zidovudine fixed dose combination tablets and efavirenz tablets. They are used to combat HIV-1 infection in adults