What is the dosage for lamivudine?

The proper dosage of lamivudine (Epivir) depends on your weight, medical condition and reason you're taking it.

General dosage guidelines for lamivudine taken to treat human immunodeficiency virus (HIV) are:
  • Children ages 16 and younger: Kids who weigh 30 to 46 pounds may take a total of 150 milligrams (mg) of lamivudine each day, split into two doses. Children who weigh 46 to 66 pounds may take a total of 225 mg daily split into two doses. Those who weigh more than 66 pounds may take a total of 300 mg a day divided into two doses.
  • Adults: 150 mg twice daily or 300 mg once daily. This includes children who weigh more than 66 pounds.
A lower dose of lamuvidine, available under the brand name Epivir-HBV, may be prescribed to treat hepatitis B, a serious liver infection. General dosage guidelines for Epivir-HBV are:
  • For children ages 2 to 16, the recommended dosage is 3 milligrams per kilogram of body weight (mg/kg) once a day (but not more than 100 mg a day).
  • For adults age 17 and older, 100 mg once per day
Lamivudine is available as a tablet and liquid that you swallow with or without food. Talk to your doctor about the dosage of lamuvidine that is right for you.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.