Read the Patient Information Leaflet if available from your pharmacist before you start taking entecavir and each time you get a refill. If you have any questions, ask your doctor or pharmacist.

Take this medication by mouth on an empty stomach (at least 2 hours after a meal and 2 hours before the next meal) as directed by your doctor, usually once daily.

If you are taking entecavir oral liquid, carefully measure your dose with the medicine spoon provided. Do not use a household spoon because you may not get the correct dose. Swallow the medicine directly from the measuring spoon. Do not mix the medication with water or other liquids. Rinse the spoon with water after each use.

The dosage is based on your medical condition and response to treatment. Children's dosage is also based on weight.

It is very important to keep taking this medication exactly as prescribed by your doctor. Do not skip any doses.

This medication works best when the amount of drug in your body is kept at a constant level. Take this drug at evenly spaced intervals. To help you remember, take it at the same time each day.

Do not take more or less of this drug than prescribed or stop taking it even for a short time unless directed to do so by your doctor. Doing so may cause the amount of virus to increase, make the infection more difficult to treat (resistant), or worsen side effects. See also Warning section.

Tell your doctor if your condition does not get better or if it gets worse.