• Composition : entecavir
  • Manufacturer: hetero
  • Indication: Hepatitis
  • Packaging: Bottle
  • Dosage Form: Tablet


  • 0.5mg

Medicine Details

Brand Name: Cronivir

Generic Name: Entecavir

Manufacturer: Hetero

Dosage Form: Tablet

Strength: 0.5mg

Composition: Entecavir

Packaging: 30 tablets

Indication: Hepatitis B

Storage: Store at room temperature

Cronivir (Entecavir) is an antiviral drug used for the treatment of chronic (when the infection moves into the long-lasting stage) Hepatitis B virus. This medicine belongs to a class of drugs known as Hepatitis B virus nucleoside reverse transcriptase inhibitors. Long-term Hepatitis B infection can cause liver damage. This medication helps to reduce the amount of virus in the body. If you experience any signs and symptoms while receiving this medicine, inform your doctor immediately. Do not change or stop the dose of this medicine without taking suggestions from your doctor. Avoid the consumption of alcohol while having treatment with this medicine.

Entecavir is an antiviral drug. It is a guanosine nucleoside analog with activity against HBV reverse transcriptase and is efficiently phosphorylated to the active triphosphate form. It is designed to selectively inhibit the Hepatitis B virus, blocking all three steps in the replication process. The effects of this medicine can be observed in 1.5 hours.

This medicine helps to prevent the multiplication of the Hepatitis B virus in human cells. Take the dose of Cronivir tablet according to your dosing schedule to get the most benefit from it. It is important to take this medication as prescribed by your doctor. This medicine can be taken orally on an empty stomach 2 hours before or after the meals. Do not skip the dose of this medicine. The recommended dose of Entavir tablet is decided by a doctor according to your previous medical condition and response to the treatment. Do not use this medicine without consulting with your doctor if you are pregnant or planning to become pregnant.

Cronivir tablets can interact with other medications and it may increase the risk for side effects. Don’t forget to disclose and discuss your previous medical history with the doctor.

Medicine Interactions

  • Tobramycin
  • Pamidronate
  • Celebrex
  • Aminoglycoside antibiotics
  • Metformin

Disease Interactions

  • Hemodialysis
  • Renal dysfunction
  • Hepatotoxicity

Alcohol Interaction

  • Interaction with alcohol is unknown. Please consult your doctor before consuming alcohol.


  • Do Not Take This Medicine If You Are Allergic To Entecavir.
  • Cronivir (Entecavir) medicine is not recommended in patients known to be hypersensitive.

Side Effects Entecavir 0.5mg Tablet

This medicine may cause some mild or severe side effects. Discuss the risks and benefits of Cornivir tablets with the doctor before starting the treatment.

Common Side Effects

  • Diarrhea
  • Stomach pain
  • Nausea
  • Fatigue
  • Abdominal pain
  • Loss of appetite
  • Vomiting
  • Rash
  • Insomnia
  • Dizziness
  • Difficulty in swallowing
  • Severe liver damage
  • Allergic reaction
  • Unusual weakness
  • Heartburn
  • Drowsiness
  • Hair loss
  • Headache
  • Swelling of the face, eyes, or throat
  • Unusual tiredness
  • Acid or sour stomach
  • Drowsiness
  • Chest pain

Note – Immediately contact your doctor or medical practitioner if any side effects occur.

Take this medicine as prescribed by your doctor. Do not stop or skip your regular dosing schedule.

Missed Dose
It is advisable not to miss a dose. If you miss a scheduled dose of Entehep (Entecavir) tablet, contact your doctor immediately.

In case of an overdose of Cronivir tablets, the doctor will provide emergency medical treatment.

Before starting treatment with Cronivir medicine, please inform your doctor about your previous medical history. If you experience any signs and symptoms while receiving this medication, do not ignore those symptoms because it may lead to higher risk.


Use suitable methods of contraception to prevent pregnancy while taking this medicine.

Children and adolescents

Cronivir tablets are not advisable for use in children less than 2 years of age.

Warnings For Female

  • Pregnancy

Do not use this medicine if you are planning to become pregnant. Avoid this medication at the time of pregnancy.

  • Breastfeeding

This medicine is not recommended in breastfeeding unless it is essential. Please consult with your doctor before starting treatment with this medication.


  • This medicine may interact with other medicines. Do not forget to discuss or disclose your previous medical history with your doctor.
  • This medicine may increase the risk of acid in the blood.
  • Inform your doctor if you experience any side effects like – loss of appetite, insomnia, nausea, diarrhea, abdominal pain, vomiting, and dizziness.
  • Close monitoring of liver function is required for at least a few months after the discontinuation of treatment.


  • Do not drive or operate heavy machinery.
  • Do not crush or break the tablet.
  • Not safe for pregnant women.
  • Do not breastfeed while receiving this medication.
  • Do not skip your regular dosing schedule.


  • Composition : entecavir
  • Manufacturer: hetero
  • Indication: Hepatitis
  • Packaging: Bottle
  • Dosage Form: Tablet


  • 0.5mg