Epivir is an antiviral drug called a nucleoside reverse transcriptase inhibitor or NRTI. Epivir is used to treat infections due to hepatitis B and human immunodeficiency virus (HIV). When used for hepatitis B, Epivir can slow the damage to your liver. When used for HIV Epivir may reduce the amount of HIV in the blood and increase the number of CD4 cells (T-cells) in the blood. When used to treat HIV, Epivir is used in combination with other medicines for HIV. Epivir

Epivir contains the active ingredient lamivudine, which is a type of medicine called a nucleoside reverse transcriptase inhibitor. Epivir is used in the treatment of HIV (human immunodeficiency virus) infection.

AIDS (acquired immune deficiency syndrome) is caused by infection with HIV. This virus invades cells of the immune system, particularly the white blood cells known as CD4 T-helper lymphocytes. These cells normally work to activate other cells in the immune system to fight infection. Since HIV kills CD4 T-helper cells, over time the body becomes

Maintain adequate levels of Epivir in your bloodstream at all times. So it is required to take this medication regularly, as prescribed even if you are feeling better.
Epivir may be taken with or without food.

Adults
The usual dose of Epivir (either tablets or liquid) is 150 milligrams twice daily or 300 milligrams once a day. Your doctor may adjust the dosage if you have kidney problems or weigh less than 110 pounds.

Children aged 3 months to 16 years
The usual dose of Epivir is 4 milligrams

You should tell your doctor or pharmacist what medicines you are using, particularly those listed below, before you start treatment with Epivir . This includes those bought without a prescription and herbal medicines. Likewise, check with your doctor or pharmacist before starting any new medicines while you are taking Epivir.

The manufacturer recommends that Epivir be not used in combination with the following medicines:

• ganciclovir
• foscarnet
• amiloride
• dofetilide
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Most Important Fact about Epivir
Epivir does not completely eliminate HIV or totally restore the immune system. There is still a danger of serious infections, so you should be sure to see your doctor regularly for monitoring and tests.

Epivir precautions if you are pregnant or breastfeeding
The safety of Epivir in pregnancy has not been established. Epivir should only be used during pregnancy, particularly in the first trimester, if the expected benefit to the mother outweighs any potential

More common side effects of Epivir may include:

• cough,
• diarrhea
• nausea, vomiting
• difficulty sleeping
• hair loss
• headache
• runny or stuffy nose
• skin rash

Less common side effects of Epivir may include:

• breathing difficulties or shortness of breath
• changes in body appearance (weight gain around waist and/or face)
• dizziness
• muscle aches, pains, or weakness
• pain,
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