Viramune XR extended-release tablets 400 mg are yellow, oval, biconvex tablets. The tablets are embossed with product identification "V04" on one side and the BI tower logo on the other side.. Warning Very bad and sometimes deadly liver problems have happened with Viramune (nevirapine tablets). The chance is highest within the first 18 weeks of taking this drug, but can happen at any time.. Viramune XR Prices, Coupons and Patient Assistance Programs. Viramune XR (nevirapine) is a member of the NNRTIs drug class and is commonly used for HIV Infection. Viramune XR Prices . This Viramune XR price guide is based on using the Drugs.com discount card which is accepted at most U.S. pharmacies. The cost for Viramune XR oral tablet, extended release 400 mg is around $886 for a supply of . Viramune is available as an immediate-release (IR) tablets, which is taken twice a day, and as an extended-release tablet (XR), which is taken once a day. Viramune must be used in combination with other HIV drugs.. Viramune is available as release immediateViramune - tablets, extendedrelease - Viramune XR tablets or as a suspension for oral administration. Each Viramune immediate-release tablet contains 200 mg of nevirapine and the inactive. Viramune XR 400 mg extended-release tablet the next morning and do not take any more of the Viramune immediate-release tablets or oral suspension. How to take it Swallow the tablets whole with a full glass of water. The tablets should not be broken, crushed or chewed. The tablets can be taken with or without food. When to take it Take your medicine at about the same time each day. Taking it at .