The name “Zidosun” likely refers to a combination antiretroviral (ARV) medication containing Zidovudine (AZT), possibly Lamivudine (3TC), used to treat HIV/AIDS. Zidovudine is a Nucleoside Reverse Transcriptase Inhibitor (NRTI) that helps stop HIV from multiplying.  How it works: Nucleoside Reverse Transcriptase Inhibitors (NRTIs): “Zidovudine tablet for HIV/ ARV” is an NRTI that works by blocking the action of an enzyme that HIV needs to reproduce.  ART combination: “HIV Tablet Zidosun-L” is taken alone, but as part of a regimen of several compositions that work together to suppress the virus.