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Generic Name: entecavir (en TE ka veer)
Brand Names: Baraclude

What is entecavir?

Entecavir is an antiviral medication. Entecavir prevents certain virus cells from multiplying in your body

Entecavir is used to treat chronic hepatitis B.

Entecavir may also be used for purposes other than those listed in this medication guide.

What is the most important information I should know about entecavir?

Some people with hepatitis B develop liver symptoms after they stop taking entecavir, even months after stopping. Your doctor may want to check your liver function on a regular basis for several months after you stop using this medication. Do not miss any scheduled visits.

What should I discuss with my healthcare provider before taking entecavir?

Do not take this medication if you are allergic to entecavir.

• kidney disease; or
• if you have had a liver transplant.

If you have any of these conditions, you may not be able to use entecavir, or you may need a dosage adjustment or special tests during treatment.

Your name may need to be listed on an antiviral pregnancy registry when you start using this medication.

How should I take entecavir?

Take this medication exactly as it was prescribed for you. Do not take the medication in larger amounts, or take it for longer than recommended by your doctor. Follow the directions on your prescription label.

This medication comes with patient instructions for safe and effective use. Follow these directions carefully. Ask your doctor or pharmacist if you have any questions.

Measure the liquid form (oral solution) of entecavir with a special dose-measuring spoon or cup, not a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist for one.

Some people with hepatitis B develop liver symptoms after they stop taking entecavir, even months after stopping. Your doctor may want to check your liver function on a regular basis for several months after you stop using this medication. Do not miss any scheduled visits.

What happens if I miss a dose?

Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the medicine at your next regularly scheduled time. Do not take extra medicine to make up the missed dose.

What happens if I overdose?

Symptoms of an entecavir overdose are not known.

What should I avoid while taking entecavir?

Taking entecavir will not prevent you from passing hepatitis B to other people through unprotected sex or sharing of needles. Talk with your doctor about safe methods of preventing hepatitis transmission during sex, such as using a condom and spermicide. Sharing drug or medicine needles is never safe, even for a healthy person.

Entecavir side effects

• muscle pain or weakness;

• numb or cold feeling in your arms and legs;

• trouble breathing;

• nausea with vomiting; or

• fast or uneven heart rate.

• low fever;

• nausea, stomach pain, loss of appetite;

• dark urine, clay-colored stools; or

• jaundice (yellowing of the skin or eyes).

Less serious side effects may be more likely to occur, such as:

• mild nausea, vomiting, diarrhea, upset stomach;

• headache;

• skin rash; or

• sleep problems (insomnia).

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

What other drugs will affect entecavir?

Before taking entecavir, tell your doctor if you are using any of the following drugs:

• drugs that weaken your immune system (such as cancer medicine or steroids);

• amphotericin B (Fungizone, AmBisome, Amphotec, Abelcet);

• cyclosporine (Neoral, Sandimmune, Gengraf);

• pentamidine (Nebupent, Pentam);

• sirolimus (Rapamune), tacrolimus (Prograf);

• antibiotics such as capreomycin (Capastat), rifampin (Rifadin, Rimactane, Rifater), vancomycin (Vancocin, Vancoled); or

• any other antiviral medicines.

If you are using any of these drugs, you may not be able to use entecavir, or you may need dosage adjustments or special tests during treatment.

There may be other drugs not listed that can affect entecavir. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.

Where can I get more information?

• Your pharmacist has information about entecavir written for health professionals that you may read.

What does my medication look like?

Entecavir is available with a prescription under the brand name Baraclude. Other brand or generic formulations may also be available. Ask your pharmacist any questions you have about this medication, especially if it is new to you.

• Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
• Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.