Entecavir (entecavir) — Uses, Dosage, Side Effects & Safety

Drug class: Antiviral (Nucleoside Reverse Transcriptase Inhibitor)

Overview

Entecavir is an antiviral medication used to treat chronic hepatitis B virus (HBV) infection in adults and children over 2 years of age. It helps lower the amount of HBV in your body and reduces the risk of liver damage, cirrhosis, and liver cancer. Entecavir works by blocking the action of a viral enzyme (HBV DNA polymerase) that the hepatitis B virus needs to multiply. This medication does not cure hepatitis B, but it can help control the infection and improve liver health. It is important to take entecavir exactly as prescribed and not to stop suddenly, as this can cause a flare-up of hepatitis B. Regular monitoring by your healthcare provider is necessary during treatment.

Therapeutic uses

  • Hepatitis B infection

Common side effects

  • Headache
  • Nausea
  • Dizziness
  • Fatigue
  • Lactic acidosis
  • Hepatomegaly with steatosis
  • Kidney problems
  • Pancreatitis

Frequently Asked Questions about Entecavir

What is entecavir used for?

Entecavir is used to treat chronic hepatitis B infection in adults and children over 2 years old. It helps reduce the amount of hepatitis B virus in the body and lowers the risk of liver complications.

How long do I need to take entecavir?

The duration of treatment varies depending on your response and your doctor’s recommendations. Some people may need to take entecavir for several years. Do not stop taking it without your doctor’s advice.

Can entecavir cure hepatitis B?

Entecavir does not cure hepatitis B, but it helps control the infection and prevent liver damage. Lifelong monitoring is often necessary.

What should I do 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 continue your regular schedule. Do not double up doses.

Is entecavir safe during pregnancy?

Entecavir should be used during pregnancy only if clearly needed and prescribed by your doctor. Discuss the risks and benefits with your healthcare provider.

Can I drink alcohol while taking entecavir?

It is best to avoid alcohol while taking entecavir, as alcohol can increase the risk of liver damage.

What are the signs of a serious side effect?

Seek medical help if you experience symptoms such as severe weakness, rapid breathing, yellowing of the skin or eyes, dark urine, or severe abdominal pain.

Educational information only. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.