Abec L Tablets is an antiretroviral medication 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.

Abec L Tablets are usually given with other medicines to treat HIV infection. Combining Abec L Tablets with didanosine is not advisable, as it could raise the chances of experiencing didanosine toxicity. Before taking this medication, it is important to inform your doctor if you have any liver disease, including hepatitis B or C, kidney disease, heart problems, high blood pressure, high cholesterol, diabetes, or if you are overweight. It is crucial not to share personal items like razors or toothbrushes with others, and breastfeeding should be avoided. Consult your doctor for guidance on practising safe sex. The administration of this medicine can potentially result in lactic acidosis, which involves the accumulation of acid in the bloodstream. In individuals with advanced HIV infection and severely compromised immune systems, initiating antiretroviral therapy, including Abec L Tablets, may lead to an inflammatory response known as immune reconstitution inflammatory syndrome. Close monitoring is necessary in such cases.

• Treatment of HIV – 1 infection

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

Inform your healthcare provider about all the medicines you take, including prescription medications, over-the-counter medications, nutritional and vitamin supplements, and herbal products. Certain medications interact with Abec L Tablets and reduce their effectiveness by causing undesirable side effects.

• Store at controlled room temperature, between 20°C to 25°C (68°F to 77°F).
• Protect the medicine from light and excessive moisture.
• Keep the medicine out of reach of children and pets
• Take only a partial dose to compensate for a forgotten dose.

To use Abec L Tablets, follow the prescribed dosage and instructions provided by your healthcare provider. 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.

Side effects are unwanted symptoms caused by medicines. Even though all drugs cause side effects, not everyone gets them.

Serious 

• Lactic acidosis (breathing difficulties along with weakness in limbs, stomach pain, vomiting, and drowsiness)
• Liver problems (yellowing of whites of eyes and skin, urine turns dark, light-colored stools)
• Severe allergic reactions (fever, rash, nausea, diarrhea, shortness of breath)
• Changes in the immune system
• Changes in body fats (lipodystrophy)

Common

• Headache
• Nausea
• Diarrhea
• Fatigue
• Insomnia
• Abdominal pain
• Muscle or joint pain
• Skin rash

Follow prescribed dosage and instructions for Abec L Tablets. 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.

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], https://www.medicines.org.uk/emc/landing/status=1

4. ViiV Healthcare, US Food, and Drug Administration, [ Revised on May 2019] [ Accessed on 27th May June 2023], https://www.accessdata.fda.gov/drugsatfda_docs/pepfar/090519PI.pdf