Epivir (Lamivudine) – Essential Guide for HIV & Hepatitis B Treatment

When working with Epivir, a brand name for the antiviral drug lamivudine used to treat HIV and hepatitis B infections. Also known as lamivudine, it belongs to the class of nucleoside reverse transcriptase inhibitors. This medication has become a staple in modern therapy because it blocks the virus from copying its genetic material, making it harder for the infection to spread.

For people living with HIV, Human Immunodeficiency Virus, the virus that attacks the immune system, Epivir is usually combined with other drugs to form a complete antiretroviral regimen. The drug’s ability to lower the viral load is a critical factor in keeping the immune system functional and preventing disease progression.

In addition to HIV, Epivir is approved for chronic hepatitis B, a liver infection caused by the hepatitis B virus (HBV). When taken as directed, it reduces HBV DNA levels, slows liver damage, and can even lead to seroconversion in some patients.

Both of these applications fall under the umbrella of antiretroviral therapy, the use of multiple drugs to suppress viral replication in infected individuals. Epivir’s low toxicity profile and once‑daily dosing make it a convenient backbone for many ART combinations.

Because Epivir is a reverse transcriptase inhibitor, it specifically targets the enzyme HIV uses to turn its RNA into DNA, resistance can develop if the drug is used alone. That’s why clinicians pair it with drugs that act on other steps of the viral life cycle, such as protease inhibitors or integrase inhibitors.

What to Expect When Using Epivir

Typical adult dosing is 300 mg once daily for HIV and 100 mg twice daily for hepatitis B, but the exact schedule depends on kidney function and other health factors. Common side effects include mild nausea, headache, and fatigue; serious reactions are rare but can involve liver enzyme changes or lactic acidosis. Before starting Epivir, a healthcare provider will review blood work, check for drug interactions, and discuss adherence strategies to keep the virus suppressed.

Below you’ll find a curated set of articles that dive deeper into buying options, price comparisons, and safety tips for Epivir and related antivirals. Scroll down to explore detailed guides on purchasing, cost‑saving strategies, and clinical insights related to Epivir and its role in HIV and hepatitis B care.