Drug Dosing Tool: Norvir (U.S. Department of Veterans Affairs)

Norvir (ritonavir)

Type of Drug: Protease Inhibitor

Once HIV has infected a cell and made copies of itself, it uses an enzyme called protease to process itself correctly so it can be released from the cell to infect other cells. Protease inhibitors work by blocking that enzyme.

100 mg capsule

Norvir

Note: Norvir was originally taken as 600 mg twice a day, but few patients can tolerate this and it is rarely prescribed in this way anymore. Instead, "low-dose" Norvir (either 100 mg or 200 mg) is often used with each dose of certain other HIV medications to boost their levels.

Notes on taking this medication

Must take with food
Norvir interacts with many other drugs; persons using Norvir with those drugs may need an adjustment to their dose of Norvir or the other drugs; consult your medical provider

Side effects

Many side effects including nausea; vomiting; diarrhea; loss of appetite; stomach discomfort
Tingling and numbness around the mouth
Liver inflammation and increased liver enzyme levels
Elevations in cholesterol and triglycerides
Elevated blood sugar
Abnormal accumulation of body fat

See accompanying chart: Tips for Common Side Effects

My doctor's instructions

Disclaimer:

This information is not meant to substitute for advice from your medical provider or pharmacist. If you have any questions about your medication dosing, talk to your medical provider or pharmacist.

Drug Dosing Toolkit

Norvir (ritonavir)

Notes on taking this medication

Side effects

My doctor's instructions

Disclaimer:

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