Recommended Topic Related To:


"A two-year-old child born with HIV infection and treated with antiretroviral drugs beginning in the first days of life no longer has detectable levels of virus using conventional testing despite not taking HIV medication for 10 months, according "...


Epivir Patient Information Including Side Effects

Brand Names: Epivir, Epivir HBV

Generic Name: lamivudine (Pronunciation: la MIV yoo deen)

What is lamivudine (Epivir)?

Lamivudine is an antiviral medication that prevents human immunodeficiency virus (HIV) cells from multiplying in your body.

The Epivir brand of lamivudine is used to treat HIV, which causes the acquired immunodeficiency syndrome (AIDS). Lamivudine is not a cure for HIV or AIDS. The Epivir-HBV brand of lamivudine is used to treat chronic hepatitis B. Epivir-HBV should not be used in people who are infected with both hepatitis B and HIV.

Lamivudine may also be used for other purposes not listed in this medication guide.

Epivir 150 mg

elliptical, white, imprinted with GX CJ7, 150

Epivir 300 mg

diamond, gray, imprinted with GX EJ7

Epivir-HBV 100 mg

oval, yellow, imprinted with GX CG5

What are the possible side effects of lamivudine (Epivir)?

Stop using lamivudine and get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have any of these other serious side effects:

  • liver damage - nausea, stomach pain, low fever, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes);
  • lactic acidosis - muscle pain or weakness, numb or cold feeling in your arms and legs, trouble breathing, nausea with vomiting, and fast or uneven heart rate;
  • pancreatitis - severe pain in your upper stomach spreading to your back, nausea and vomiting, fast heart rate;
  • peripheral neuropathy - numbness, tingling, or pain in your hands or feet;
  • easy bruising or bleeding, unusual weakness, pale skin;
  • white patches or sores inside your mouth or on your lips;
  • fever, chills, body aches, flu symptoms; or
  • any other signs of new infection.

Less serious side effects may include:

  • cough;
  • sleep problems (insomnia), strange dreams;
  • nausea, vomiting, diarrhea;
  • joint or muscle pain;
  • dizziness, headache, tired feeling; or
  • changes in the shape or location of body fat (especially in your arms, legs, face, neck, breasts, and trunk).

This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.

Read the Epivir (lamivudine) Side Effects Center for a complete guide to possible side effects

What is the most important information I should know about lamivudine (Epivir)?

Lamivudine should not be taken together with Combivir, a medication that contains a combination of lamivudine and zidovudine.

Lamivudine may cause lactic acidosis (the build up of lactic acid in the body). Symptoms can start slowly and gradually get worse: unusual muscle pain and weakness, trouble breathing, fast or uneven heart rate, nausea, vomiting, stomach pain, and numbness or cold feeling in your arms or legs. Call your doctor at once if you have any of these symptoms, even if they are only mild.

Lamivudine can also cause severe or life-threatening effects on your liver or pancreas. Call your doctor at once if you have any of these symptoms while taking lamivudine: severe pain in your upper stomach spreading to your back, fast heart rate, nausea and vomiting, diarrhea, loss of appetite, low fever, dark urine, clay-colored stools, or jaundice (yellowing of the skin or eyes).

Before taking lamivudine, tell your doctor if you have kidney disease, liver disease, a history of pancreatitis, or if you have used a medicine similar to lamivudine in the past, such as abacavir (Ziagen), didanosine (Videx), stavudine (Zerit), tenofovir (Viread), zalcitabine (Hivid), or zidovudine (Retrovir).

If you have hepatitis B you may develop liver symptoms after you stop taking lamivudine, even months after stopping. Your doctor may want to check your liver function on a regular basis for several months after you stop using this medication. Do not miss any scheduled visits.

Epivir tablets and liquid contain a higher dose of lamivudine than Epivir-HBV. Epivir is for treating HIV and Epivir-HBV is for treating hepatitis B. Each time you get a refill of this medication, be sure you have received the correct brand to treat your condition.

Side Effects Centers

Report Problems to the Food and Drug Administration


You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

WebMD Daily

Get breaking medical news.