Proper Use

Drug information provided by: Merative, Micromedex®

Take this medicine exactly as directed by your doctor. Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered.

This medicine comes with a patient information insert. Read and follow the instructions in the insert carefully. Ask your doctor if you have any questions.

Do not change the dose or stop using this medicine without checking first with your doctor. When your supply of this medicine is running low, contact your doctor or pharmacist ahead of time. Do not allow yourself to run out of this medicine.

Take this medicine on an empty stomach, at the same time each day, preferably at bedtime.

Keep taking this medicine for the full time of treatment even if you begin to feel better. If you stop the medicine even briefly, the virus may become harder to treat.

Dosing

The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

  • For treatment of HIV infection:
    • For oral dosage form (Symfi™ tablets):
      • Adults and children weighing 40 kilograms (kg) or more—1 tablet once a day at bedtime. This medicine contains 600 milligrams (mg) efavirenz, 300 mg lamivudine, and 300 mg tenofovir disoproxil fumarate (equivalent to 245 mg tenofovir disoproxil).
      • Children weighing less than 40 kg—Use is not indicated in these patients.
    • For oral dosage form (Symfi Lo™ tablets):
      • Adults and children weighing 35 kilograms (kg) or more—1 tablet once a day at bedtime. This medicine contains 400 milligrams (mg) efavirenz, 300 mg lamivudine, and 300 mg tenofovir disoproxil fumarate (equivalent to 245 mg tenofovir disoproxil).
      • Children weighing less than 35 kg—Use is not indicated in these patients.

Missed Dose

If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.

Storage

Keep out of the reach of children.

Do not keep outdated medicine or medicine no longer needed.

Ask your healthcare professional how you should dispose of any medicine you do not use.

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.

Store the medicine in its original container. Keep the bottle tightly closed.