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Compare Epivir vs. Retrovir

Head-to-head comparisons of medication uses, side effects, warnings, and more.

Key takeaways

Lamivudine (Epivir) and Zidovudine (Retrovir) are both antiretroviral medications used to treat HIV, but they have some key differences. Lamivudine (Epivir) is also used to treat hepatitis B virus (HBV), while Zidovudine (Retrovir) is not. Lamivudine (Epivir) is typically taken once or twice daily, whereas Zidovudine (Retrovir) needs to be taken multiple times a day. Zidovudine (Retrovir) is not a first-choice option for most people due to its side effects, which include serious blood, muscle, and liver problems. In contrast, Lamivudine (Epivir) is generally well-tolerated but can cause liver issues and lactic acidosis. Both medications are available in generic forms and can be taken by mouth. Lamivudine (Epivir) can be used in children as young as 3 months for HIV and 2 years for HBV, while Zidovudine (Retrovir) is safe for children and infants for HIV treatment and prevention of mother-to-child transmission.

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