August 23, 2013
Brand Name: Reyataz
Other Name(s): ATV, atazanavir sulfate
Drug Class: Protease Inhibitors
Approved Use: Treatment of HIV Infection
Atazanavir can cause serious side effects. These include heart rhythm problems, severe rash, liver problems, and life-threatening drug interactions.
Contact your health care provider right away if you have any of the following symptoms that may signal heart rhythm problems:
Contact your health care provider right away if you have any of the following symptoms combined with a rash:
In people with existing liver problems, including infection with hepatitis B virus (HBV) or hepatitis C virus (HCV), atazanavir can cause worsening of liver problems.
While taking atazanavir, it is important to keep all of your appointments with your health care provider.
Atazanavir is a prescription medicine approved by the U.S. Food and Drug Administration (FDA) for the treatment of HIV infection in adults and children 6 years of age and older. Atazanavir is always used in combination with other anti-HIV medicines.
Atazanavir is a type of anti-HIV medicine called a protease inhibitor (PI). Atazanavir works by blocking protease, an HIV enzyme. This prevents HIV from replicating and lowers the amount of HIV in the blood.
Atazanavir does not cure HIV/AIDS. It is not known if atazanavir reduces the risk of passing HIV to other people.
Before taking atazanavir, tell your health care provider:
Atazanavir comes in the following four strengths:
Take atazanavir according to your health care provider's instructions.
Take atazanavir with food. Swallow the capsules whole. Do not open the capsules.
If you are taking antacids or the anti-HIV medicine didanosine (brand name: Videx or Videx EC), take atazanavir 2 hours before or 1 hour after you take these medicines.
If you are taking medicine for indigestion, heartburn, or ulcers, talk to your health care provider.
Always take atazanavir in combination with other anti-HIV medicines.
If you take too much atazanavir, contact your local poison control center (1-800-222-1222) or go to the nearest hospital emergency room right away.
For more information on how to take atazanavir, see the FDA drug label from DailyMed. (DailyMed is a federal website that includes the most recent drug labels submitted to FDA.)
Take the missed dose as soon as you remember it and then take your next scheduled dose at its regular time. But if your next scheduled dose is within 6 hours, do not take the missed dose. Wait and take the next dose at the regular time. Do not take two doses at the same time to make up for a missed dose.
Atazanavir can cause severe side effects. These include heart rhythm problems, severe rash, liver problems, and life-threatening drug interactions. (See the WARNING above.)
Other possible side effects of atazanavir include:
Tell your health care provider if you have any side effect that bothers you or that does not go away.
These are not all the possible side effects of atazanavir. Ask your health care provider or pharmacist for more information on possible side effects of atazanavir.
More information about atazanavir is available: