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ritonavir (Norvir)


Generic name: ritonavir

Brand names: Norvir

Class: Booster drugs


Common: nausea, vomiting, diarrhoea, abdominal pain, headache, weakness, bad taste in mouth, lipodystrophy, raised lipid and liver enzymes, dizziness, flushing, pain in the throat, cough, indigestion, tingling or numbness in the hands, feet or around the mouth, peripheral neuropathy, itching, rash, joint and back pain.

Rare: heart attack, diabetes, kidney failure, serious allergic reaction.


100mg capsule and 100mg tablet.

Ritonavir is given at low doses to boost the level of other protease inhibitors. Take 100-200mg once or twice a day.

Ritonavir is also approved for use as an anti-HIV drug at a dose of 600mg twice a day, but it is no longer used in this way.


Take with food to avoid nausea.

*Last reviewed on 25/09/2015 Next review: 25/09/2018

Any questions? Email feedback@tht.org.uk Information included on this website was correct at the time of publication.

Data and image supplied by NAM.

Further information on this drug from NAM