Once-daily nevirapine approved in United States

Keith Alcorn
Published: 29 March 2011

The US Food and Drug Administration has approved a new once-daily extended release formulation of nevirapine, known as Viramune XR.

The new 400mg tablet will provide an alternative to the current twice-daily dosing schedule, and can be taken without or without food.

Patients who start treatment with Viramune XR will need to take a 14-day lead-in dose of 200mg of immediate release nevirapine in order to reduce the risk of rash, a common side-effect during the first few weeks of nevirapine treatment.

Treatment with Viramune XR should not begin until rash has gone away, and if a rash persists for more than one month an alternative antiretroviral should be used.

Patients already on a regimen of immediate-release Viramune twice daily in combination with other antiretroviral agents can be switched to Viramune XR 400 mg once daily without the 14-day lead-in period of immediate-release Viramune.

Viramune XR was licensed on the basis of results from the VERxVE study, a randomised comparison of immediate-release twice-daily dosing and once-daily dosing with Viramune XR. The 48-week results, presented last year at the 18th International AIDS Conference, showed no significant difference in rates of viral suppression or adverse events between the two formulations.

Nevirapine is not suitable for men with CD4 counts above 400 cells/mm3 or women with CD4 counts above 250 cells/mm3, due to the increased risk of serious and life-threatening hepatotoxicity, unless the benefit of treatment with the drug is considered to outweigh the risk of serious toxicity.

Tell us why you visited aidsmap today

Could you help us by answering three questions on why you’ve visited aidsmap today?

You can close this questionnaire and come back to it later. Just click on the pink circle.

What prompted you to visit aidsmap today?

What exactly are you looking for? What specific questions do you need answered?

Have you found what you were looking for?


Thank you for your feedback

Thank you very much for taking time to fill in this questionnaire. NAM really values your feedback. It helps make the information we provide better.

If you have any other comments on the content of this website, we would be interested to hear from you. Please email info@nam.org.uk.

Community Consensus Statement on Access to HIV Treatment and its Use for Prevention

Together, we can make it happen

We can end HIV soon if people have equal access to HIV drugs as treatment and as PrEP, and have free choice over whether to take them.

Launched today, the Community Consensus Statement is a basic set of principles aimed at making sure that happens.

The Community Consensus Statement is a joint initiative of AVAC, EATG, MSMGF, GNP+, HIV i-Base, the International HIV/AIDS Alliance, ITPC and NAM/aidsmap

This content was checked for accuracy at the time it was written. It may have been superseded by more recent developments. NAM recommends checking whether this is the most current information when making decisions that may affect your health.

NAM’s information is intended to support, rather than replace, consultation with a healthcare professional. Talk to your doctor or another member of your healthcare team for advice tailored to your situation.