stavudine, Zerit

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GENERIC NAME: stavudine

BRAND NAME: Zerit

DRUG CLASS AND MECHANISM: Stavudine is an oral medication that is used for the treatment of infections with the human immunodeficiency virus (HIV). It is in a class of drugs called reverse transcriptase inhibitors which also includes zalcitabine (Hivid), zidovudine (Retrovir), didanosine (Videx), and lamivudine (Epivir). During infection with HIV, the HIV virus multiplies within the body's cells. The newly formed viruses are released from the cells and spread throughout the body where they infect other cells. In this manner the infection continually spreads to new uninfected cells that the body is continually producing, perpetuating HIV infection. When producing new viruses, the HIV virus must manufacture new DNA for each virus. Reverse transcriptase is the enzyme that the virus uses to form this new DNA. Specifically, stavudine is converted within the body to its active form (stavudine triphosphate). This active form is similar to thymidine triphosphate, a chemical that is used by the HIV virus to make new DNA. The reverse transcriptase uses stavudine triphosphate instead of thymidine triphosphate for making DNA, and the stavudine triphosphate interferes with the action of the reverse transcriptase. Stavudine does not kill existing HIV virus, and it is not a cure for HIV. Stavudine was approved by the FDA in June 1994.

Medically Reviewed by a Doctor on 3/25/2013



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