Cronivir 0.5 mg Tablet | Uses, Side Effects, Price

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Prescription Medicine

Cronivir 0.5 mg Tablet is used to treat chronic hepatitis B virus (HBV) infection. It helps reduce the amount of virus in the body, prevents further liver damage, and supports long-term liver health. With regular use, it lowers the risk of complications such as cirrhosis and liver failure, helping to slow the progression of liver disease.

Written By Veda Maddala , M Pharmacy

Reviewed By Bayyarapu Mahesh Kumar , M Pharmacy

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More about the Product

Composition :

ENTECAVIR-0.5MG

Manufacturer/Marketer :

Hetero Healthcare Pvt Ltd

Consume Type :

Oral

Expires on or after :

Jan-27

Return Policy :

Not Returnable

About Cronivir 0.5 mg Tablet

Cronivir 0.5 mg Tablet is used to treat chronic hepatitis B virus (HBV) infection. Hepatitis B is a severe liver infection caused by the hepatitis B virus (HBV). It is highly contagious and spreads through intimate contact with the infected person and direct contact with infected blood.

Cronivir 0.5 mg Tablet contains Entecavir, which helps prevent the virus from replicating and reduces the amount of hepatitis B virus in the body.

Take Cronivir 0.5 mg Tablet as advised by the doctor. In some cases, you may experience dizziness, headache, nausea, vomiting, drowsiness, extreme tiredness, inability to sleep, diarrhoea, or indigestion. Most of these side effects do not require medical attention. However, if the side effects worsen, please consult your doctor.

If you are allergic to Cronivir 0.5 mg Tablet or any other medicines, please tell your doctor. If you are pregnant or breastfeeding, please consult a doctor before taking Cronivir 0.5 mg Tablet . It is recommended to use effective contraceptive methods while using Cronivir 0.5 mg Tablet to avoid pregnancy. If you have HIV/AIDS, kidney or liver problems, inform your doctor before taking Cronivir 0.5 mg Tablet .

Uses of Cronivir 0.5 mg Tablet

Cronivir 0.5 mg Tablet is used in the treatment of chronic (long-term) hepatitis B virus (HBV) infection. The detailed uses of Cronivir 0.5 mg Tablet are as follows:

Treatment of Chronic HBV Infection: Cronivir 0.5 mg Tablet is indicated for the treatment of chronic HBV infection, including those with compensated liver disease (liver is damaged but still functions properly) and decompensated liver disease (liver is damaged and no longer functions properly).

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Directions for Use

Cronivir 0.5 mg Tablet can be taken on an empty stomach, preferably 2 hours before or after a meal.
It is usually taken once daily at the same time each day or as prescribed by your doctor.
Swallow Cronivir 0.5 mg Tablet as a whole with a glass of water.
Do not break, crush, or chew it.

Key Benefits

Effectively inhibits the growth of the hepatitis B virus (HBV).
Lowers ALT/AST levels and liver inflammation.
Inhibits or slows the development of cirrhosis.
Reduces the chance of hepatocellular carcinoma (liver cancer) and liver failure.
Enhances liver health over the long run with ongoing treatment.

How Cronivir 0.5 mg Tablet Works

Cronivir 0.5 mg Tablet contains Entecavir, an antiviral drug. It works by inhibiting viral DNA polymerase enzyme action in the liver cells, which is essential for the virus to multiply. Therefore, it prevents the virus from replicating and reduces the amount of hepatitis B virus in the body.

Storage

Store in a cool and dry place away from sunlight

Side effects of Cronivir 0.5 mg Tablet

Swelling In The Feet And Ankles

Wear compression garments like stockings, sleeves, or gloves to apply pressure and help stop fluid from building up, especially after the swelling goes down.
Move around and do exercises to help the fluid circulate, especially in swollen limbs. Ask your doctor for specific exercises.
Raise the swollen area above your heart level several times a day, even while sleeping, to help reduce swelling.
Gently massage the swollen area with firm but not painful pressure.
Keep the swollen area clean and moisturized to prevent injury and infection.
Reduce salt intake to help prevent fluid from building up and worsening the swelling, as advised by a doctor.
If the swelling does not get better after a few days of home treatment or worsens, consult your doctor right away.

Abnormal Fluid Build-Up In Abdomen

Eat a well-balanced diet, and avoid highly processed foods.
Regular exercise can help prevent ascites.
Maintain a healthy weight, as obesity is a risk factor for ascites.
Limit salt intake; try to consume no more than 2,000–4,000 milligrams of salt per day.
Avoid alcohol, as it can damage your liver and increase the risk of cirrhosis.
Practice safe sex, unprotected sex can lead to hepatitis, which can damage the liver and cause cirrhosis.
Get vaccinated for diseases like hepatitis, influenza, and pneumococcal.

High Body Temperature

Here's a comprehensive approach to managing medication-triggered fever:

Inform your doctor immediately if you experience a fever after starting a new medication.
Your doctor may adjust your medication regimen or dosage as needed to minimize fever symptoms.
Monitor your body temperature to monitor fever progression.
Drink plenty of fluids, such as water or electrolyte-rich beverages, to help your body regulate temperature.
Get plenty of rest and engage in relaxation techniques, such as deep breathing or meditation, to help manage fever symptoms.
Under the guidance of your doctor, consider taking medication, such as acetaminophen or ibuprofen, to help reduce fever.
If your fever is extremely high (over 103°F), or if you experience severe symptoms such as confusion, seizures, or difficulty breathing, seek immediate medical attention.

Common Cold

Here are the steps to manage the medication-triggered Upper respiratory tract infection:

Inform your doctor about the symptoms you're experiencing due to medication.
Your doctor may adjust your treatment plan, which could include changing your medication, adding new medications, or offering advice on managing your symptoms.
Practice good hygiene, including frequent handwashing, avoiding close contact with others, and avoiding sharing utensils or personal items.
Stay hydrated by drinking plenty of fluids to help loosen and clear mucus from your nose, throat, and airways.
Get plenty of rest and engage in stress-reducing activities to help your body recover. If your symptoms don't subside or worsen, consult your doctor for further guidance.

Headache

Dealing with Medication-Induced Headache:

Hydrate your body: Drink enough water to prevent dehydration and headaches.
Calm Your Mind: Deep breathing and meditation can help you relax and relieve stress.
Rest and Recharge: Sleep for 7-8 hours to reduce headache triggers.
Take rest: lie down in a quiet, dark environment.
Cold or warm compresses can help reduce tension.
Stay Upright: Maintain good posture to keep symptoms from getting worse.
To treat headaches naturally, try acupuncture or massage therapy.
Over-the-counter pain relievers include acetaminophen and ibuprofen.
Prescription Assistance: Speak with your doctor about more substantial drug alternatives.
Severe Headaches: Seek emergency medical assistance for sudden, severe headaches.
Frequent Headaches: If you get reoccurring headaches, consult your doctor.
Headaches with Symptoms: Seek medical attention if your headaches include fever, disorientation, or weakness.

Fatigue

Rest well; get enough sleep.
Eat a balanced diet and drink enough water.
Manage stress with yoga and meditation.
Limit alcohol and caffeine.
Physical activities like walking or jogging might help boost energy and make you feel less tired.

Dizziness

Here are the 7 steps to manage Dizziness caused by medication:

Inform your doctor about dizziness symptoms. They may adjust your medication regimen or prescribe additional medications to manage symptoms.
Follow your doctor's instructions for taking medication, and take it at the same time every day to minimize dizziness.
When standing up, do so slowly and carefully to avoid sudden dizziness.
Avoid making sudden movements, such as turning or bending quickly, which can exacerbate dizziness.
Drink plenty of water throughout the day to stay hydrated and help alleviate dizziness symptoms.
If you're feeling dizzy, sit or lie down and rest until the dizziness passes.
Track when dizziness occurs and any factors that may trigger it, and share this information with your doctor to help manage symptoms.

What if I have taken an overdose of Cronivir 0.5 mg Tablet

An overdose of Cronivir 0.5 mg Tablet may cause unpleasant effects. If you suspect you have taken an overdose, please consult a doctor immediately.

Drug Warnings

If you are allergic to Cronivir 0.5 mg Tablet or any other medicines, please tell your doctor.
If you are pregnant or breastfeeding, please consult a doctor before taking Cronivir 0.5 mg Tablet .
It is recommended to use effective contraceptive methods while using Cronivir 0.5 mg Tablet to avoid pregnancy.
Cronivir 0.5 mg Tablet is not recommended for children below 2 years of age.
Inform your doctor if you experience stomach pain, vomiting or nausea while taking Cronivir 0.5 mg Tablet , as it might indicate the development of lactic acidosis (excess of lactic acid in blood), a rare but serious side effect.
If you have HIV/AIDS or kidney or liver problems, inform your doctor before taking Cronivir 0.5 mg Tablet .

Drug-Drug Interactions

EntecavirCiprofloxacin

Severe

EntecavirAllopurinol

Severe

Drug-Drug Interactions

EntecavirCiprofloxacin

Severe

How does the drug interact with Cronivir 0.5 mg Tablet:
Combining Cronivir 0.5 mg Tablet with ciprofloxacin may result in higher blood levels of one or both the medications.

How to manage the interaction:
Although taking ciprofloxacin and Cronivir 0.5 mg Tablet together can possibly result in an interaction, it can be taken if your doctor has prescribed it. If your situation changes or you start to notice more side effects, consult your doctor.

EntecavirAllopurinol

Severe

How does the drug interact with Cronivir 0.5 mg Tablet:
Coadministration of Allopurinol with Cronivir 0.5 mg Tablet may increase the blood levels of one or both medicines and increase side effects.

How to manage the interaction:
If you are supposed to take Allopurinol and Cronivir 0.5 mg Tablet together, your doctor may adjust the dose or monitor you more frequently to safely use both medications. However, if you experience increased side effects, contact your doctor.

EntecavirMethotrexate

Severe

How does the drug interact with Cronivir 0.5 mg Tablet:
The combined use of Cronivir 0.5 mg Tablet with methotrexate may increase levels of Cronivir 0.5 mg Tablet, and increase the risk or severity of kidney damage.

How to manage the interaction:
Although there is a possible interaction between Cronivir 0.5 mg Tablet and methotrexate, you can take these medicines together if prescribed by your doctor. However, if you experience any symptoms such as nausea, vomiting, loss of appetite, increased or decreased urination, sudden weight gain or weight loss, fluid retention, swelling, shortness of breath, tiredness, weakness, dizziness. Consult a doctor. Do not stop using any medications without consulting a doctor.

Drug-Food Interactions

No Drug - Food interactions found in our database. Some may be unknown. Consult your doctor for what to avoid during medication.

Drug-Food Interactions

Diet & Lifestyle Advise

Healthy eating habits:

Eat a liver-friendly, well-balanced diet rich in fruits, vegetables, and healthy grains.
Reduce liver strain by limiting processed, fried, and fatty foods.
Eat meals at regular times and drink plenty of water.

Lifestyle changes:

Avoid alcohol entirely to safeguard your liver.
Maintain a healthy weight by engaging in moderate exercise.

Physical activity

Regularly engage in light to moderate exercise, such as yoga or walking.
Steer clear of overdoing it if you're feeling weak or exhausted.
To lessen liver strain, maintain a healthy weight.

Habit Forming

Therapeutic Class

[ANTIVIRALS]

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Alcohol

Consult your doctor

The interaction of alcohol with Cronivir 0.5 mg Tablet is unknown. Please consult a doctor before consuming alcohol while using Cronivir 0.5 mg Tablet .

Pregnancy

Caution

Cronivir 0.5 mg Tablet is a category C pregnancy drug and is given to pregnant women only if the doctor thinks the benefits outweigh the risks.

Breast Feeding

Consult your doctor

It is unknown whether Cronivir 0.5 mg Tablet is excreted in human milk. Therefore, please consult a doctor if you are breastfeeding.

Driving

Caution

Cronivir 0.5 mg Tablet may cause dizziness, drowsiness or tiredness in some people. Therefore, avoid driving or operating heavy machinery if you feel dizzy, drowsy or tired after taking Cronivir 0.5 mg Tablet .

Liver

Caution

Take Cronivir 0.5 mg Tablet with caution, especially if you have a history of liver disease. The dose may be adjusted by your doctor as required. Please consult a doctor.

Kidney

Caution

Take Cronivir 0.5 mg Tablet with caution, especially if you have a history of kidney disease. The dose may be adjusted by your doctor as required. Please consult a doctor.

Children

Caution

Cronivir 0.5 mg Tablet is not recommended for children below 2 years or weighing less than 10 kg. However, in children above 2 years, Cronivir 0.5 mg Tablet should be used with caution and doses prescribed by a doctor.

Heart

Safe if prescribed

Cronivir 0.5 mg Tablet is safe for use in heart patients if recommended by the physician.

Geriatrics

Caution

Cronivir 0.5 mg Tablet should be given with caution in elderly patients due to an increased risk of side effects. Seek medical advice before using Cronivir 0.5 mg Tablet .

FAQs

What is the use of Cronivir 0.5 mg Tablet ?

Cronivir 0.5 mg Tablet is used to treat chronic hepatitis B virus (HBV) infection.

How does Cronivir 0.5 mg Tablet work?

Cronivir 0.5 mg Tablet contains Entecavir, an antiviral drug that works by preventing viral DNA polymerase enzyme action in the liver cells, which is essential for the virus to multiply. Therefore, it prevents the virus from replicating and reduces the amount of hepatitis B virus in the body.

Is hepatitis B virus infection contagious?

Yes, hepatitis B virus infection is highly contagious and spreads from one person to another. Therefore, it is recommended to avoid sharing personal items or needles containing an infected person's blood or body fluids.

Does Cronivir 0.5 mg Tablet cause lactic acidosis?

Cronivir 0.5 mg Tablet may cause lactic acidosis (excess of lactic acid in the blood), a rare but severe side effect, especially in women who are very obese. However, if you experience stomach pain, vomiting or nausea while taking Cronivir 0.5 mg Tablet , please consult a doctor immediately.

Can I take Cronivir 0.5 mg Tablet with celecoxib?

You are not recommended to take Cronivir 0.5 mg Tablet with celecoxib (painkiller), as it may increase the blood levels of Cronivir 0.5 mg Tablet , leading to more adverse effects and may also affect kidney function. However, please consult your doctor before taking Cronivir 0.5 mg Tablet with other medicines.

Does Cronivir 0.5 mg Tablet cure hepatitis B virus infection?

Cronivir 0.5 mg Tablet does not cure hepatitis B virus infection. Cronivir 0.5 mg Tablet reduces the amount of hepatitis B virus in the body and improves liver functioning by decreasing liver damage.

Is Cronivir 0.5 mg Tablet safe for patients with HIV infection?

Cronivir 0.5 mg Tablet is not recommended for hepatitis B patients with HIV infection unless they are taking medicines to treat HIV infection at the same time, as Cronivir 0.5 mg Tablet may cause HIV infection to become resistant to certain HIV drugs and reduce their effectiveness. Therefore, it is advised to get tested for HIV infection before taking Cronivir 0.5 mg Tablet .

Can I stop taking Cronivir 0.5 mg Tablet on my own?

You are not recommended to stop taking Cronivir 0.5 mg Tablet without consulting your doctor, as it may worsen the infection or cause recurring symptoms. Therefore, take Cronivir 0.5 mg Tablet for as long as your doctor has prescribed it. If you experience any difficulty while taking Cronivir 0.5 mg Tablet , please consult your doctor.

What are the side effects of Cronivir 0.5 mg Tablet ?

Cronivir 0.5 mg Tablet may cause side effects like dizziness, headache, nausea, vomiting, drowsiness, extreme tiredness, inability to sleep, diarrhoea, or indigestion. Most of these side effects do not require medical attention. However, if the side effects worsen, please consult your doctor.

Country of origin

India

Manufacturer/Marketer address

2Nd Floor, 8-3-166/7/1 Erragadda, Hyderabad-500018

Other Info - CRO0118

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Author Details

Written By

Veda Maddala

M Pharmacy

Reviewed By

Bayyarapu Mahesh Kumar

M Pharmacy

Last Updated

Feb 6, 2026 | 11:07 AM IST

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