Drug Database: Abacavir / Lamivudine

What is Epzicom?

Epzicom is a prescription medicine approved by the U.S. Food and Drug Administration (FDA) for the treatment of HIV infection in adults and in children who weigh at least 55 lb (25 kg). Epzicom is always used in combination with other HIV medicines. 

Epzicom contains two different medicines: abacavir and lamivudine.

For more information on the use of Epzicom in people with HIV, please refer to the Guidelines for the Use of Antiretroviral Agents in Adults and Adolescents with HIV and the Guidelines for the Use of Antiretroviral Agents in Pediatric HIV Infection.

HIV medicines cannot cure HIV/AIDS, but taking HIV medicines every day helps people with HIV live longer, healthier lives. HIV medicines also reduce the risk of HIV transmission. If you are taking HIV medicines, do not cut down on, skip, or stop taking them unless your health care provider tells you to.

What should I tell my health care provider before taking Epzicom?

Before taking Epzicom, tell your health care provider:

• If you are allergic to either of the HIV medicines in Epzicom (abacavir or lamivudine) or any other medicines.
• If you have been tested and know whether you have a particular gene variation called HLA-B*5701.
• If you have or have had liver problems, including hepatitis B virus infection (HBV) or hepatitis C virus infection (HCV).
• If you have kidney problems.
• If you have heart problems; smoke; or have diseases that increase your risk of heart disease, such as high blood pressure, high cholesterol, or diabetes.
• If you have any other medical conditions.
• If you are pregnant or plan to become pregnant. Talk to your health care provider about the risks and benefits of taking Epzicom during pregnancy. For more information on the use of Epzicom during pregnancy, please refer to the Recommendations for the Use of Antiretroviral Drugs During Pregnancy and Interventions to Reduce Perinatal HIV Transmission in the United States.
• If you are breast/chestfeeding or plan to breast/chestfeed. For people with HIV in the United States, the Guideline recommends speaking with your health care provider to discuss options for feeding your baby. People with suppressed viral load have a less than 1% chance of transmitting HIV to their baby via their own milk.
• If you are using hormone-based birth control (such as pills, implants, or vaginal rings). For more information about using birth control and HIV medicines at the same time, view the HIVinfo HIV and Birth Control infographic.
• About other prescription and nonprescription medicines, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Epzicom may affect the way other medicines or products work, and other medicines or products may affect how Epzicom works. Taking Epzicom together with certain medicines or products may cause serious side effects.

How should I take Epzicom?

Epzicom comes in tablet form. Each tablet contains:

• 600 mg abacavir
• 300 mg lamivudine

Take Epzicom according to your health care provider’s instructions. Do not miss a dose of Epzicom, and do not change your dose or stop taking Epzicom without first talking with your health care provider.

Take Epzicom by mouth with or without food. Tell your health care provider if your child has trouble swallowing Epzicom tablets.

Always take Epzicom in combination with other HIV medicines.

If you have taken too much Epzicom, contact your health care provider or local poison control center (1-800-222-1222 or online) right away, or go to the nearest hospital emergency room.

For more information on how to take Epzicom, see the FDA drug label.

What should I do if I forget a dose?

If you miss a dose of Epzicom, take the missed dose as soon as you remember it. But if it is almost time for your next dose, skip the missed dose and just take your next dose at the regular time. Do not take two doses at the same time to make up for a missed dose.

What side effects can Epzicom cause?

Epzicom may cause side effects. Some side effects of Epzicom can be serious as noted above. Many side effects from HIV medicines, such as nausea or occasional dizziness, are manageable. See the HIVinfo fact sheet on HIV Medicines and Side Effects for more information.

Other possible side effects of Epzicom include:

• Changes in your immune system (called immune reconstitution inflammatory syndrome or IRIS). IRIS is a condition that sometimes occurs when the immune system begins to recover after treatment with an HIV medicine. As the immune system gets stronger, it may have an increased response to a previously hidden infection.
• Increased risk of heart attack (myocardial infarction).

Tell your health care provider if you have any side effect that bothers you or that does not go away.

These are not all the possible side effects of Epzicom. To learn more about possible side effects of Epzicom, read the drug label or package insert or talk to your health care provider or pharmacist.

You can report side effects to FDA at 1-800-FDA-1088 (1-800-332-1088) or online.

How should Epzicom be stored?

• Store Epzicom at room temperature, 77°F (25°C).
• Keep Epzicom in the container that it came in and keep the container tightly closed.
• Do not use Epzicom if the original seal over the container opening is broken or missing.
• Throw away Epzicom that is no longer needed or expired (out of date). Follow FDA guidelines on how to safely dispose of unused medicine.
• Keep Epzicom and all medicines out of reach of children.

Where can I find more information about Epzicom?

• For more information on the use of Epzicom in people with HIV, please refer to the Guidelines for the Use of Antiretroviral Agents in Adults and Adolescents with HIV and the Guidelines for the Use of Antiretroviral Agents in Pediatric HIV Infection.
• This Patient Version drug summary is based on the following FDA label(s): Tablet (film coated). The Medication Guide includes information for people taking Epzicom.
• Epzicom-related research studies, from ClinicalTrials.gov. (The ClinicalTrials.gov search can be modified so that you can get results that better match your interests.)
• A list of FDA-approved HIV medicines, from HIVinfo.