Lamivudine belongs to a class of medication called nucleoside reverse transcriptase inhibitors. It decreases the amount of virus (HIV and hepatitis) in the blood. It also increases the number of infection fighting cells in the body (CD4 cells). Zidovudine belongs to a group of medications called nucleoside analogue reverse transcriptase inhibitors (NRTIs), also known as antiretrovirals. Nevirapine belongs to a class of anti-HIV medicines called non-nucleoside reverse transcriptase inhibitors (NNRTIs).
Lamivudine indicated as part of antiretroviral combination therapy for the treatment of Human Immunodeficiency Virus (HIV) infected adults and children and also used in the treatment of Hepatitis B virus infection. Zidovudine is used in combination with other antiretroviral (ART) medicines for the treatment of human immunodeficiency virus (HIV-1) infection. Zidovudine is also indicated for use in HIV-positive pregnant (over 14 weeks) women for prevention of maternal-fetal HIV transmission (passing of infection), and for primary preventive treatment of HIV infection in new-born infants. Nevarapine is used to treat and control Human Immunodeficiency Virus (HIV-1) infection for adults, adolescents, and children of any age. It must be used along with other HIV medicines.