Entecavir
Conditions Treated
Entecavir is used to treat chronic (long-term) hepatitis B infection (swelling of the liver caused by a virus) in people who have liver damage. Entecavir is in a class of medications called nucleoside analogs. It works by decreasing the amount of hepatitis B virus (HBV) in the body. Entecavir does not cure HBV and may not prevent complications of chronic hepatitis B such as cirrhosis of the liver or liver cancer. Entecavir does not prevent the spread of HBV to other people.
Possible Side Effects
What Side Effects Can This Cause?
Entecavir may cause side effects. Tell your doctor if this symptom is severe or does not go away:
- headache
Some side effects can be serious. If you experience any of the symptoms listed in the IMPORTANT WARNING section, call your doctor immediately.Entecavir may cause other side effects. Call your doctor if you have any unusual problems while using this medication.If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online [at http://www.fda.gov/Safety/MedWatch] or by phone [1-800-332-1088].
Usage Instructions
How Should This Medication Be Used
Entecavir comes as a tablet and solution (liquid) to take by mouth. It is usually taken once a day on an empty stomach, at least 2 hours after a meal and at least 2 hours before the next meal. Take entecavir at around the same time every day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take entecavir exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor. To use the entecavir solution, follow these steps:
What Dietary Instructions Should I Follow
Unless your doctor tells you otherwise, continue your normal diet.
Are There Any Special Instructions
Before taking entecavir, tell your doctor and pharmacist if you are allergic to entecavir, or any other medications, or any of the ingredients in entecavir tablets or solution. Ask your pharmacist for a list of the ingredients. tell your doctor and pharmacist what other prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Be sure to mention the medications listed in the IMPORTANT WARNING section and any of the following: aminoglycoside antibiotics such as amikacin (Amikin), gentamicin (Garamycin), kanamycin (Kantrex), neomycin (Neo-Rx, Neo-Fradin), paromomycin (Humatin), streptomycin, and tobramycin (Tobi, Nebcin); amphotericin B (Fungizone); medications to prevent rejection of a transplanted organ such as cyclosporine (Neoral, Sandimmune) or tacrolimus (Prograf);probenecid; or vancomycin. Your doctor may need to change the doses of your medications or monitor you carefully for side effects. tell your doctor if you have had a liver transplant (surgery to replace a diseased liver) or if you have or have ever had kidney disease. if you are having surgery, including dental surgery, tell the doctor or dentist that you are taking entecavir.
Brand Names
Common Brand Names for This Medication
- Baraclude®
Overdose
What To Do In The Case of Emergency
In case of overdose, call your local poison control center at 1-800-222-1222. If the victim has collapsed or is not breathing, call local emergency services at 911.
Forgotten Doses
What Should I Do If I Forget A Dose?
Take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.
Additional Information
What Are the Storage Conditions for this Medication?
Keep this medication in the container it came in, tightly closed, and out of reach of children and pets. Store it at room temperature and away from excess heat, light, and moisture (not in the bathroom medicine cabinet or near the kitchen sink). Throw away any medication that is outdated or no longer needed. Talk to your pharmacist about the proper disposal of your medication.
What Other Information Should I Know?
Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription. It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.