Viramune is a prescription medication that is used to treat HIV infections. This medication belongs to a class of drugs known as non-nucleoside reverse transcriptase inhibitors (NNRTIs). NNRTIs block the reverse transcriptase enzyme, which is responsible for the replication of the human immunodeficiency virus (HIV). Some of the common synonyms for Viramune include nevirapine, Viramune XR, and neviplapine. Nevirapine is the active ingredient in this medication, and it is available in both brand and generic form. Viramune is prescribed alongside other medications as part of an HIV treatment regimen and can help people living with HIV lead fuller, healthier lives.