What is Hepsera?

Hepsera or Adefovir Dipivoxil is an antiviral medicine that is used to treat chronic hepatitis B in adults and children at least 12 years old. It works by slowing the growth of the virus, helping to lower the amount of virus in your body. It is not a cure for hepatitis B and does not prevent the passing of hepatitis B to others. This medication is a nucleotide analog.

Always read the patient information and instructions carefully before using this medication.

• Take this medication by mouth with or without food as directed by your doctor, usually once daily. The dosage is based on your medical condition and response to treatment.
• Use this medication regularly to the get the most benefit from it. To help you remember, take it at the same time each day. Do not increase or decrease your dose or stop taking this medication unless directed to do so by your doctor or pharmacist. Refill your medication before it runs out.
• Treatment with adefovir alone is not appropriate for patients infected with both hepatitis B and HIV. An HIV test is recommended both before and during treatment to ensure you receive appropriate treatment.
• Worsening of your condition, decreased response to treatment, or infection by resistant strains of the virus may occur during or after treatment. Tell your doctor right away of any new symptoms that occur during or after treatment.

Make sure to tell your doctor and pharmacist:

• If you have any drug allergies.
• Which other prescription and non-prescription medications you currently take.
• Your medical history, especially of: HIV infection, kidney problems, liver transplant.

Also be aware that:

• During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.
• It is unknown if this medication passes into breast milk. Consult your doctor before breast-feeding.

Common side-effects may include but are not limited to:

• Weakness, headache, fever, increased cough, nausea, vomiting, diarrhea, or gas may occur.

Contact your doctor if you experience any of the following side-effects:

• Signs of kidney problems (such as change in the amount of urine).
• Any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

Q: What should I avoid while taking Hepsera?

A: Using Hepsera will not prevent your disease from spreading. Do not have unprotected sex or share razors or toothbrushes. Talk with your doctor about safe ways to prevent transmission during sex. Sharing drug or medicine needles is never safe, even for a healthy person.

Q: What happens if I miss a dose?

A: Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time. Get your prescription refilled before you run out of medicine completely.