Epzicom (Abamun L) is a prescription medication used to treat HIV (human immunodeficiency virus) infection. It belongs to a class of drugs called antiretrovirals, which work by reducing the amount of HIV in the body. This medication should be used in combination with other antiretroviral drugs to effectively control HIV. Each tablet of Epzicom contains a combination of two antiretroviral medications: abacavir and lamivudine.