Neviraz is one of the leading Nevirapine medicine brands in India. Nevirapine works by inhibiting the activity of reverse transcriptase, an enzyme that is necessary for the copying of the virus. The block of the enzyme leads to a reduction in HIV copying and helps in maintaining the cohesion of the immune system.

Nevirapine binds directly to the reverse transcriptase enzyme and inhibits its catalytic activity, preventing both RNA and DNA dependent polymerase functions. It blocks replication of the virus, decreasing the infection level inside the cells. After all, CD4 cell counts rise. CD4 cells are a type of immune cell that helps the body fight with infection.