Frithvir 0.5mg Tablet (ENTECAVIR)
What is Frithvir tablet?
Frithvir tablet is an antiviral medication used to treat chronic hepatitis B infection. It works by slowing the replication of the hepatitis B virus in the body, reducing liver damage and lowering the risk of complications such as liver cirrhosis and liver cancer. Although it helps manage the infection, it does not cure hepatitis B completely. Long-term use may be necessary to keep the virus suppressed.
What is the usual dose of Frithvir tablet?
For adults, the usual dose is 0.5 mg to 1 mg once daily, taken on an empty stomach. The 1 mg dose is usually given to patients with a resistant strain of hepatitis B or severe liver disease. In children, the dose is based on body weight and must be prescribed by a doctor. Patients with kidney disease may require dose adjustments.
How do I take Frithvir tablet?
Frithvir tablet should be taken on an empty stomach, at least two hours before or after eating, for better absorption. Swallow the tablet whole with water. Missing doses or stopping the medication suddenly can make the virus resistant to treatment, so it’s important to take it regularly as prescribed by a doctor.
For how long do I take Frithvir tablet?
The duration of treatment depends on the severity of hepatitis B infection and liver function. Some people may need to take it for years or even lifelong to keep the virus under control. Stopping the medicine without medical advice can lead to a rapid return of the virus, causing further liver damage.
What is Frithvir tablet used for?
Frithvir tablet is primarily used to treat chronic hepatitis B infection. It helps reduce the viral load in the blood, improves liver function, and lowers the risk of complications such as liver fibrosis and liver cancer. It is also sometimes used in patients who have undergone liver transplants to prevent hepatitis B reactivation.
How long does it take for Frithvir tablet to start working?
Frithvir tablet starts reducing the hepatitis B virus levels within a few weeks, but noticeable improvements in liver function and reduced liver inflammation may take several months. Regular blood tests are required to monitor the response and effectiveness of the treatment.
Is Frithvir tablet effective?
Yes, clinical studies have shown that Frithvir tablet is highly effective in lowering hepatitis B viral levels and improving liver function. It is considered one of the best antiviral drugs for hepatitis B, with a low risk of resistance when taken properly. However, it does not cure the infection completely, and long-term use is often required.
How does one know if Frithvir tablet is working?
Doctors monitor hepatitis B virus levels through blood tests. A reduction in viral load and improvement in liver enzyme levels indicate that the medicine is working. Patients may also experience relief from symptoms such as fatigue and jaundice as liver function improves over time.
How does Frithvir tablet work?
Frithvir tablet belongs to a class of drugs called nucleoside analogs. It blocks the hepatitis B virus from making copies of itself by interfering with viral DNA replication. This helps reduce the viral load in the blood, slows liver damage, and improves liver function over time.
Who should avoid taking Frithvir tablet?
People with severe kidney disease, HIV infection (without proper HIV treatment), or liver failure should consult a doctor before taking Frithvir tablet. Pregnant or breastfeeding women should also discuss potential risks. Patients who have previously taken other hepatitis B drugs should inform their doctor to check for resistance.
Can I take Frithvir tablet with vitamins or supplements?
Most vitamins and supplements are safe, but avoid those that can affect the liver, such as high doses of vitamin A or herbal liver detox products. Always inform your doctor about any supplements you are taking to prevent possible interactions.
Can I take Frithvir tablet with other prescription drugs?
Some medications, including HIV drugs, kidney medications, and certain antibiotics, may interact with Frithvir tablet, affecting its effectiveness or increasing side effects. Inform your doctor about all prescription and over-the-counter medications you are taking.
Can Frithvir tablet be taken safely while pregnant?
Frithvir tablet is not usually recommended during pregnancy as its effects on unborn babies are not well studied. Women who are pregnant or planning to conceive should discuss alternative hepatitis B treatments with their doctor.
Can Frithvir tablet be taken safely while breastfeeding?
It is unclear whether Frithvir tablet passes into breast milk, so breastfeeding mothers should consult a doctor to weigh the benefits and risks before taking this medicine. A safer alternative may be recommended.
Is Frithvir tablet safe for the elderly?
Yes, but elderly patients may need dose adjustments due to reduced kidney function. Regular monitoring is necessary to prevent side effects such as lactic acidosis and kidney problems.
How should I store Frithvir tablet?
Store Frithvir tablet at room temperature (20-25°C) in a dry place, away from direct sunlight and moisture. Keep it out of reach of children and do not use expired medication.
Does Frithvir tablet make people tired or drowsy?
Yes, some people experience fatigue or dizziness. If this happens, avoid driving or operating heavy machinery. If the fatigue is severe or persistent, consult your doctor for advice on managing side effects.
Does Frithvir tablet cause stomach upset?
Yes, nausea, vomiting, and stomach pain are possible side effects. Taking the medicine on an empty stomach improves absorption but may worsen stomach discomfort. If the symptoms persist, speak with your doctor about possible solutions.
Does Frithvir tablet affect sleep?
Some people may experience insomnia or unusual dreams, though this is not very common. If sleep disturbances become a problem, discuss them with your doctor for possible adjustments.
Does Frithvir tablet make it hard to think or concentrate?
A small number of patients may experience dizziness or confusion. If this affects daily activities, inform your doctor for guidance on managing these side effects.
Does Frithvir tablet affect mood?
Mood changes, such as anxiety or depression, are rare but possible. If you experience persistent sadness, mood swings, or mental health concerns, consult your doctor.
Does Frithvir tablet interfere with sexual function?
There is no strong evidence that Frithvir tablet affects sexual function, but if you notice changes in libido or performance, consult your doctor.
Does Frithvir tablet affect appetite?
Some people may experience loss of appetite, but this is not very common. If you notice prolonged appetite loss, inform your doctor for further evaluation.
Does Frithvir tablet cause weight gain?
Weight gain is not a typical side effect. If you experience unexplained weight changes, consult your doctor to rule out other underlying health issues.
Does Frithvir tablet cause headaches?
Yes, headaches are a common side effect. Drinking plenty of water, resting, and avoiding stress may help. If headaches are severe, talk to your doctor about possible pain relief options.
Does Frithvir tablet limit driving?
If you experience dizziness, fatigue, or confusion, avoid driving or using machinery. If these symptoms persist, consult your doctor.
Is it safe to drink alcohol while taking Frithvir tablet?
Alcohol can worsen liver damage, so it is best to avoid it while taking Frithvir tablet. Drinking alcohol may also reduce the medicine’s effectiveness. If necessary, consult your doctor about safe limits.
Is it safe to drink coffee or tea while taking Frithvir tablet?
Yes, coffee and tea are generally safe, but excessive caffeine may worsen side effects like headaches or dizziness. Drink in moderation.
Is it safe to exercise while taking Frithvir tablet?
Yes, but if you feel tired or weak, adjust your activity level accordingly. Moderate exercise can improve liver health but avoid intense workouts if experiencing dizziness.
What are Frithvir tablet possible harms and risks?
Common side effects include headache, dizziness, fatigue, and nausea. Serious but rare side effects include lactic acidosis (a dangerous buildup of acid in the blood) and liver problems. Signs of lactic acidosis include muscle pain, weakness, and difficulty breathing. If you experience severe side effects, seek medical attention immediately.
Similar Medicines
Entecavir (0.5mg)
.svg)
