Entabest 0.5 Tablet
Written By Dr. Sakshi Sharma, BDS
Reviewed By Dr. Ashish Ranjan, MD (Pharmacology), MBBS
Last updated on 12 Nov 2024 | 01:08 AM (IST)
Entecavir is an antiviral medicine used in the treatment of hepatitis B virus (HBV) infection. It works by inhibiting the replication of the virus, thereby reducing its levels in the body. By suppressing viral replication, it helps to slow down the progression of liver damage.
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General Information
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Product introduction
Entabest 0.5 Tablet should be taken in an empty stomach. Take it in the exact dose and duration prescribed by your doctor. Follow the instructions carefully. Taking it regularly at the right times greatly increases the effectiveness and help improve liver function, and decrease the risk of complications associated with chronic HBV infection. It is not known whether Entabest 0.5 Tablet will reduce your chances of getting liver cancer or liver damage (cirrhosis), which may be caused by chronic HBV infection. Do not miss a dose and keep taking until your doctor tells you it is safe to stop.
Common side effects of this medicine include headache, nausea, vomiting, stomach pain, fatigue, and diarrhea. These are usually not serious but tell your doctor if they bother you or do not go away. Rarely, some people may experience a skin reaction or liver damage. Your doctor will closely monitor you for these in the initial period of treatment.
Before taking it, tell your doctor if you have any skin problems or kidney disease. While using it, you may need regular blood tests to check your blood counts and liver function. Avoid drinking alcohol as it may increase your risk of liver damage. Pregnant or breastfeeding mothers should consult their doctor before using this medicine. Do not have unprotected sex or share personal items like razors or toothbrushes, if you are HIV positive. Talk to your doctor about safe ways like condoms to prevent HIV transmission during sex.
Common side effects of this medicine include headache, nausea, vomiting, stomach pain, fatigue, and diarrhea. These are usually not serious but tell your doctor if they bother you or do not go away. Rarely, some people may experience a skin reaction or liver damage. Your doctor will closely monitor you for these in the initial period of treatment.
Before taking it, tell your doctor if you have any skin problems or kidney disease. While using it, you may need regular blood tests to check your blood counts and liver function. Avoid drinking alcohol as it may increase your risk of liver damage. Pregnant or breastfeeding mothers should consult their doctor before using this medicine. Do not have unprotected sex or share personal items like razors or toothbrushes, if you are HIV positive. Talk to your doctor about safe ways like condoms to prevent HIV transmission during sex.
Uses of Entabest Tablet
Benefits of Entabest Tablet
Chronic hepatitis B virus (HBV) infection
In patients with chronic hepatitis B virus (HBV) infection, Entabest 0.5 Tablet works by preventing the HBV virus from multiplying in the body. It helps control the infection and makes the immune system work better. This lowers the chances of getting complications and improves the quality of life.
This medicine is always taken in combination with other antiretroviral medicines. It is not a cure and should neither be used to prevent HBV infection. It is important that you take this medicine as prescribed, following the dosage recommended by your doctor. Taking all doses in the right amount at the right times greatly increases the effectiveness of the medicine.
In patients with chronic hepatitis B virus (HBV) infection, Entabest 0.5 Tablet works by preventing the HBV virus from multiplying in the body. It helps control the infection and makes the immune system work better. This lowers the chances of getting complications and improves the quality of life.
This medicine is always taken in combination with other antiretroviral medicines. It is not a cure and should neither be used to prevent HBV infection. It is important that you take this medicine as prescribed, following the dosage recommended by your doctor. Taking all doses in the right amount at the right times greatly increases the effectiveness of the medicine.
Side effects of Entabest Tablet
Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them
Common side effects of Entabest
- Headache
- Nausea
- Vomiting
- Fatigue
- Stomach pain
- Diarrhea
How to use Entabest Tablet
Take this medicine in the dose and duration as advised by your doctor. Swallow it as a whole. Do not chew, crush or break it. Entabest 0.5 Tablet is to be taken empty stomach.
How Entabest Tablet works
Entabest 0.5 Tablet is an antiviral medication. It prevents the multiplication of virus in human cells. This stops the virus from producing new viruses and clears up your infection.
All substitutes for Entabest 0.5 Tablet
For information purposes only. Consult a doctor before taking any medicine.
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Entavir 0.5mg Tablet
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Hepalo 0.5 Tablet
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Cronivir Tablet
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Quick tips
- You have been prescribed Entabest 0.5 Tablet for the treatment of chronic hepatitis B virus (HBV) infection.
- Take it on an empty stomach, at least 2 hours after or before a meal.
- Entabest 0.5 Tablet may cause dizziness or sleepiness. Do not drive or do anything requiring concentration until you know how it affects you.
- You may still develop infections or other illnesses associated with viral infection while taking this medication.
- During treatment and for at least six months after stopping this medicine, regular blood tests are needed to monitor your liver function, level of hepatitis B virus and blood cells in your blood.
Safety advice

Alcohol
CONSULT YOUR DOCTOR
It is not known whether it is safe to consume alcohol with Entabest 0.5 Tablet. Please consult your doctor.

Pregnancy
CONSULT YOUR DOCTOR
Entabest 0.5 Tablet may be unsafe to use during pregnancy. Although there are limited studies in humans, animal studies have shown harmful effects on the developing baby. Your doctor will weigh the benefits and any potential risks before prescribing it to you. Please consult your doctor.

Breast feeding
CONSULT YOUR DOCTOR
Entabest 0.5 Tablet is probably unsafe to use during breastfeeding. Limited human data suggests that the drug may pass into the breastmilk and harm the baby.

Driving
UNSAFE
Entabest 0.5 Tablet may decrease alertness, affect your vision or make you feel sleepy and dizzy. Do not drive if these symptoms occur.

Kidney
CAUTION
Entabest 0.5 Tablet should be used with caution in patients with kidney disease. Dose adjustment of Entabest 0.5 Tablet may be needed. Please consult your doctor.

Liver
SAFE IF PRESCRIBED
Entabest 0.5 Tablet is safe to use in patients with liver disease. No dose adjustment of Entabest 0.5 Tablet is recommended.

Frequently asked questions
You should take Entabest 0.5 Tablet exactly as prescribed by your doctor and continue taking it till your doctor tells you to stop. 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. It is advised to take it around the same time every day. If not sure, consult your doctor.
Yes, Entabest 0.5 Tablet can cause serious liver problems like hepatomegaly (enlargement of the liver) and steatosis (an increased build-up of fat in the liver). It is important to know that hepatomegaly along with steatosis is a serious medical emergency which requires immediate medical attention.
The symptoms of liver problems include jaundice (a condition in which your skin or the white part of your eyes turns yellow), dark-colored urine, light-colored stools, loss of appetite, nausea and stomach pain. These symptoms are more common in women, overweight patients, or if you have been on Entabest 0.5 Tablet for a long time. Immediately contact your doctor if you experience any such symptoms.
Drug resistance is a state where the medicine which was once effective in treating an infection becomes ineffective. This mainly happens due to the ability acquired by the virus or bacteria to get modified inside the body which affects the overall working of the medicine. Hence, the medicine is no longer able to fight against the virus or bacteria. Generally, drug resistance with Entabest 0.5 Tablet is more likely to happen if you take less dose than what is recommended.
Do not stop taking entecavir without consulting your doctor. Stopping entecavir before treatment may worsen your hepatitis. This can happen during the first several months after you stop taking entecavir. Take the medicine strictly as advised and do not miss any dose.
The use of Entabest 0.5 Tablet is not recommended in HBV patients who are also diagnosed with HIV, until and unless these patients start taking medicines for HIV management. Starting Entabest 0.5 Tablet in such patients may cause resistance to the prescribed HIV medicines. Therefore, doctors recommend tests for HIV in patients diagnosed with HBV infection before starting treatment with Entabest 0.5 Tablet.
No, Entabest 0.5 Tablet does not cure hepatitis B but may improve the condition of the liver. The medicine may help decrease the amount of hepatitis B virus (HBV) present in the body. This is done by limiting the ability of HBV to multiply and further infect new liver cells.
Fact Box
Chemical Class
Nucleoside analog
Habit Forming
No
Therapeutic Class
ANTI INFECTIVES
Action Class
Nucleoside/nucleotide reverse transcriptase inhibitors (NRTIs)
Related lab tests
References
- Acosta EP, Flexner C. Antiviral Agents (Nonretroviral). In: Brunton LL, Chabner BA, Knollmann BC, editors. Goodman & Gilman’s: The Pharmacological Basis of Therapeutics. New York, New York: McGraw-Hill Medical; 2011. pp. 1616-617.
- Safrin S. Antiviral Agents. In: Katzung BG, Masters SB, Trevor AJ, editors. Basic and Clinical Pharmacology. 11th ed. New Delhi, India: Tata McGraw Hill Education Private Limited; 2009. p. 869.
- Briggs GG, Freeman RK, editors. A Reference Guide to Fetal and Neonatal Risk: Drugs in Pregnancy and Lactation. 10th ed. Philadelphia, PA: Wolters Kluwer Health; 2015. pp. 474-75.
- Entecavir. Uxbridge, Middlesex: Bristol-Myers Squibb Pharmaceuticals limited; 2006 [revised 1 Feb. 2019] (online) Available from:
- Entecavir. Princeton, New Jersey: Bristol-Myers Squibb; 2005 [revised Oct. 2012]. [Accessed 31 Mar. 2019] (online) Available from:
- Central Drugs Standard Control Organisation (CDSCO). [Accessed 31 Mar. 2019] (online) Available from:
- CiplaMed. Entecavir [Prescribing Information]. [Last Revised: 10/03/2021]. [Accessed 22 Jun. 2023] (online) Available from:
- Entecavir [Prescribing Information]. Waterford, Ireland: EirGen Pharma Ltd.; 2017. [Accessed 22 Jun. 2023] (online) Available from:

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Patient concerns
I have HBV related chronic liver problem .Local urologist suggest me to take rapilif d 8 for urine block problem?Can i take that medicine with entavir for hepatitis b virus and cronic liver disease?
Dr. Praveen Pushkar
Urology
Yes u can take it
Suffering from Hepatitis B virus from last one week. Please suggest me.
Dr. Anshum Aneja Arora
Pulmonology
Pls consult a gastroenterologist
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Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.
Marketer details
Name: Shelton Pharmaceuticals Pvt Ltd
Address: Unit No 49, M2k Corporate Park,Mayfield garden, N- Block, Sector 51, Gurugram, Haryana - 122004
Address: Unit No 49, M2k Corporate Park,Mayfield garden, N- Block, Sector 51, Gurugram, Haryana - 122004
Vendor Details
Country of origin: India
A licensed vendor partner from your nearest location will deliver Entabest 0.5 Tablet. Once the pharmacy accepts your order, the details of the pharmacy will be shared with you. Acceptance of your order is based on the validity of your doctor's ℞ and the availability of this medicine.
Phone Number: 0124-4166666
Address: 5th Floor Tower - B of the Presidency Building, 46/4 Mehrauli Gurgaon Road, Sector 14, Gurugram, Haryana-122001, India
A licensed vendor partner from your nearest location will deliver Entabest 0.5 Tablet. Once the pharmacy accepts your order, the details of the pharmacy will be shared with you. Acceptance of your order is based on the validity of your doctor's ℞ and the availability of this medicine.
In case of any issues, contact us
Email ID: [email protected]Phone Number: 0124-4166666
Address: 5th Floor Tower - B of the Presidency Building, 46/4 Mehrauli Gurgaon Road, Sector 14, Gurugram, Haryana-122001, India
Lab tests offered by us
- CBC (Complete Blood Count)
- FBS (Fasting Blood Sugar)
- Thyroid Profile Total (T3, T4 & TSH)
- HbA1c (Glycosylated Hemoglobin)
- Glucose - Postprandial
- Lipid Profile
- Vitamin D (25-Hydroxy)
- Urine R/M (Urine Routine & Microscopy)
- Coronavirus Covid-19 Test (RT-PCR technique)
- LFT (Liver Function Test)
- Kidney Function Test
- TSH (Thyroid Stimulating Hormone) Ultrasensitive
- ESR (Erythrocyte Sedimentation Rate)
- Uric Acid
- Vitamin B12
- C- Reactive Protein Quantitative
- Urine Culture and Sensitivity
- Serum Electrolyte
- Serum Calcium
- Creatinine
- Diabetes Screening
- KFT with Electrolytes (Kidney Function Test with Electrolytes)
- Cholesterol - Total
- Hemoglobin
- Complete Haemogram
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