Atazanavir/ritonavir

Atazanavir/ritonavir is a medication used in the treatment of HIV/AIDS. It is a combination of two antiretroviral drugs, atazanavir and ritonavir, which work together to inhibit the growth of the HIV virus in the body.

Mechanism of Action

Atazanavir is a type of antiretroviral medication known as a protease inhibitor. It works by blocking the action of an enzyme called protease, which is needed by the HIV virus to replicate. Ritonavir, on the other hand, is a pharmacokinetic enhancer. It increases the level of atazanavir in the body, thereby enhancing its effectiveness.

Usage

Atazanavir/ritonavir is used in combination with other antiretroviral medications to treat adults and children who are at least 6 years old and weigh at least 15 kilograms. It is not a cure for HIV or AIDS, but it can help to control HIV infection and decrease the risk of developing AIDS.

Side Effects

Common side effects of atazanavir/ritonavir include nausea, diarrhea, and headache. Serious side effects may include liver problems, heart rhythm problems, and severe skin reactions.

Interactions

Atazanavir/ritonavir can interact with a number of other medications, including certain other antiretroviral drugs, antacids, and certain cholesterol-lowering drugs. It is important to tell your doctor about all the medications you are taking before starting treatment with atazanavir/ritonavir.

See Also

• Antiretroviral therapy
• Protease inhibitor (pharmacology)
• Pharmacokinetic enhancer