Tenvir L Tablet Uses: Hepatitis b virus infection HIV infection HIV Hepatitis b virus Tenvir L Tablet Composition: Tenofovir - 300 MG Lamivudine - 300 MG Tenvir L Tablet Working: Blocking the activity of a viral enzyme. Increasing the number of infection fighting cells in the body Tenvir L Tablet - Precautions & How to Use: Before using Tenvir L Tablet, inform your doctor about your current list of medications, over the counter products (e.g. vitamins, herbal supplements, etc.), allergies, pre-existing diseases, and current health conditions (e.g. pregnancy, upcoming surgery, etc.). Some health conditions may make you more susceptible to the side-effects of the drug. Take as directed by your doctor or follow the direction printed on the product insert. Dosage is based on your condition. Tell your doctor if your condition persists or worsens. Important counseling points are listed below. Avoid pregnancy Discontinue use if rapid increase in aminotransferase levels, progressive hepatomegaly, or metabolic or lactic acidosis of unknown origin Do not take tenofovir with other drugs that can potentially damage kidneys Do physical examination of fat redistribution Have diabetes and renal impairment Monitor blood levels of lipids and sugar in elderly Tenvir L Tablet - Side-effects: The following is a list of possible side-effects that may occur from all constituting ingredients of Tenvir L Tablet. Disease of muscle tissue Kidney problems Low potassium levels Lactic acidosis Liver problems Increased liver enzymes.