This page contains brief details about the drug , it's indication, dosage & administaration, mechanism of action, related brands with strength, warnings and common side effects.

Background and Date of Approval

Abacavir and Lamivudine are antiretroviral medications containing the active constituents Abacavir and Lamivudine. Both medications belong to a class of drugs called nucleoside reverse transcriptase inhibitors (NRTIs) and are often used in combination with other antiretroviral drugs as part of highly active antiretroviral therapy (HAART) or combination antiretroviral therapy (cART). It is used to treat HIV-1 infection. HIV-1 is a virus known as the Human immunodeficiency virus, which targets and eradicates immune system cells, ultimately weakening the body's defense against infections. If left untreated, it can result in death. While this medication does not offer a complete cure, it effectively lowers the virus levels in your body and boosts the count of CD4 cells in your bloodstream. These cells play a crucial role in assisting your body's fight against infections. The initial FDA approval date for abacavir was December 17, 1998; lamivudine was November 17, 1995.

Mechanism of Action of undefined

Abacavir and lamivudine work by inhibiting the reverse transcriptase enzyme, which is necessary for the replication of HIV. By blocking this enzyme, the drugs help reduce the viral load in the body, slow the progression of HIV infection, and improve the immune system's function.

Uses of undefined

Abacavir and Lamivudine are used in the treatment of HIV-1 infection.

undefined Drug administaration and Dosage available

To use Abacavir and Lamivudine, follow your healthcare provider's prescribed dosage and instructions. Take the medications as directed, usually orally, with or without food. Do not skip doses or stop taking them without consulting your healthcare provider. Consult your healthcare provider or pharmacist for guidance if you have any questions or concerns.

Warnings, Precautions and Side Effects of undefined


When using abacavir and lamivudine, it is important to be aware of potential warnings and risks. These include the possibility of severe hypersensitivity reactions to abacavir, the risk of lactic acidosis with lamivudine, the potential for immune reconstitution inflammatory syndrome, the need for monitoring in individuals with liver or kidney impairment, the rare occurrence of pancreatitis with lamivudine, changes in body fat distribution, interactions with other medications, and considerations for pregnancy and breastfeeding.


Discussing these warnings with your healthcare provider to ensure these medications' safe and appropriate use is essential. When using abacavir and lamivudine, it is important to adhere to the prescribed dosage and follow the instructions provided by your healthcare provider. Before starting treatment, inform your healthcare provider about any medical conditions, allergies, or medications you are taking.

Regular monitoring of liver function and kidney function is advised. If you experience symptoms of a hypersensitivity reaction, such as fever, rash, or respiratory symptoms, discontinue the medication and seek immediate medical attention. Avoid alcohol and be cautious when driving or operating machinery, as these medications may cause dizziness or drowsiness. Consult your healthcare provider before changing your treatment regimen or starting new medications.

Side Effects

Common side effects of abacavir and lamivudine may include headache, nausea, diarrhea, fatigue, rash, and abdominal pain. Less frequently, individuals may experience severe hypersensitivity reactions, which can be life-threatening and require immediate medical attention. Other potential side effects include liver abnormalities, lactic acidosis (accumulation of lactic acid in the blood), and changes in body fat distribution.

Word Of Advice

Follow the prescribed dosage and instructions for abacavir and lamivudine. Undergo genetic screening for hypersensitivity reactions and seek immediate medical attention if symptoms arise. Watch for lactic acidosis, monitor liver function, and adjust dosages for renal impairment. Be aware of immune reconstitution inflammatory syndrome, pancreatitis symptoms, and changes in body fat distribution. Consider potential drug interactions and consult a healthcare provider regarding use during pregnancy and breastfeeding. The use of this medication in both elderly individuals and children requires special consideration. Adherence and open communication ensure the safe use of this medication.

Frequently Asked Question


  1. KD Tripathi, Essentials of Medical Pharmacology, Antiviral drugs, 7th edition, 2013, 807-808.
  2. Goodman & Gilman’s, The Pharmacological Basis of Therapeutics, Antiretroviral agents and treatment of HIV infection, 12th edition, 2011, 1635-1636.
  3. Lupin Healthcare (UK) Limited, Electronic medicines compendium (EMC), [ Revised on April 2023] [ Accessed on 27th May 2023],
  4. ViiV Healthcare, US Food, and Drug Administration, [ Revised on May 2019] [ Accessed on 27th May June 2023],


The drug information on this page is different from medical advice. It is meant for educational purposes only. For further details, consult your doctor about your medical condition to know if you can receive this treatment.