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Ribavirin: Brands, Price & Uses in Bangladesh
Ribavirin is an antiviral medicine used only in combination with other antiviral agents, never alone.
About Ribavirin
Indications of Ribavirin
Ribavirin is an antiviral medicine used only in combination with other antiviral agents, never alone. Established and guideline-supported uses include:
- Chronic hepatitis C (genotypes 1-6): FDA-approved for use in combination with peginterferon alfa-2b or interferon alfa-2b in adults and children 3 years and older with compensated liver disease. Ribavirin must never be used as monotherapy for hepatitis C because it is not effective alone.
- Severe lower respiratory tract infection caused by respiratory syncytial virus (RSV): the inhaled (aerosolized) form of Ribavirin is used in hospitalized infants and young children with severe RSV bronchiolitis or pneumonia, administered only under specialist supervision using a SPAG-2 nebulizer.
- Certain viral hemorrhagic fevers (off-label): in some settings Ribavirin is used off-label, under specialist guidance, for selected viral hemorrhagic fevers where evidence supports possible benefit; this use is not FDA-approved.
Use of Ribavirin for chronic hepatitis C requires combination therapy and specialist (hepatologist/infectious disease) supervision.
Dosage & Administration of Ribavirin
Dosing of Ribavirin depends on the indication, body weight, and the interferon product used in combination. Ribavirin must always be taken exactly as prescribed by a physician; do not stop, extend, skip doses, or share this medicine with others without medical advice.
Chronic hepatitis C (with peginterferon alfa-2b)
| Body weight | Total daily dose of Ribavirin |
|---|---|
| Less than 66 kg | 800 mg/day (2 divided doses) |
| 66-80 kg | 1000 mg/day (2 divided doses) |
| 81-105 kg | 1200 mg/day (2 divided doses) |
| More than 105 kg | 1400 mg/day (2 divided doses) |
Chronic hepatitis C (with interferon alfa-2b)
Adults up to 75 kg: 1000 mg/day; over 75 kg: 1200 mg/day, given in two divided doses with food.
Pediatric hepatitis C (age 3-17 years)
Approximately 15 mg/kg/day in two divided doses, combined with weight-based peginterferon or interferon alfa-2b; children under 47 kg generally require the oral solution.
Severe RSV infection (inhaled form)
Administered only in hospital, by continuous aerosol via a SPAG-2 nebulizer, for 12-18 hours daily for 3-7 days, using a solution reconstituted as directed by the treating specialist. This route is not for home use.
Dose adjustment for anemia
| Hemoglobin level | Action |
|---|---|
| 8.5-10 g/dL (no cardiac disease) | Reduce Ribavirin dose |
| Below 8.5 g/dL | Discontinue Ribavirin |
| Drop of 2 g/dL or more within 4 weeks (cardiac disease) | Permanent dose reduction |
See Use in Special Populations for renal and hepatic dose considerations, and Duration of Treatment for how long therapy is continued.
Side Effects of Ribavirin
Ribavirin, used in combination therapy, commonly causes:
- Very common: fatigue, headache, fever, chills, nausea, muscle and joint aches, irritability, injection-site reactions (related to the combined interferon), insomnia.
- Hematologic: hemolytic anemia (dose-related, usually within 1-2 weeks), neutropenia, and thrombocytopenia.
- Gastrointestinal: decreased appetite, weight loss, diarrhea, vomiting, dry mouth.
- Dermatologic: hair thinning (alopecia), itching, rash.
- Psychiatric: depression, anxiety, mood changes, and rarely suicidal thoughts - report any mood changes to your physician immediately.
- Less common but serious: pancreatitis, pulmonary symptoms (shortness of breath, cough), thyroid abnormalities, and significant growth suppression in children (see Pediatric Uses).
Contact your physician promptly if you notice unusual bleeding, severe shortness of breath, signs of infection, or thoughts of self-harm while taking Ribavirin.
Contraindications of Ribavirin
Ribavirin is contraindicated in the following situations:
- Pregnancy, and in male partners of pregnant women, due to proven teratogenic and embryocidal effects (see Pregnancy and Lactation).
- Known hypersensitivity to Ribavirin or any component of the formulation, including prior severe hypersensitivity reactions such as Stevens-Johnson syndrome or toxic epidermal necrolysis.
- Hemoglobinopathies such as thalassemia major or sickle-cell anemia, because of the risk of severe hemolysis.
- Autoimmune hepatitis.
- Severe or unstable cardiac disease, because Ribavirin-induced anemia can precipitate cardiac events.
- Severe renal impairment (creatinine clearance below 50 mL/min) for oral formulations.
- Concurrent use with didanosine.
Frequently Asked Questions about Ribavirin
What is Ribavirin used for?
Ribavirin is used, always in combination with other antiviral medicines, to treat chronic hepatitis C in adults and children 3 years and older, and, in an inhaled hospital-administered form, to treat severe RSV lower respiratory tract infection in infants and young children.
Can Ribavirin be used alone for hepatitis C?
No. Ribavirin is not effective as monotherapy for chronic hepatitis C and must always be combined with an interferon-based or other approved antiviral regimen as prescribed by a specialist.
Is Ribavirin safe during pregnancy?
No. Ribavirin is absolutely contraindicated in pregnancy because it has caused significant birth defects and fetal loss in animal studies. Women must have a negative pregnancy test before starting, use effective contraception during treatment and for 9 months after, and male patients (and their partners) must use contraception during treatment and for 6 months after, since Ribavirin can also harm a fetus if the male partner is exposed.
What monitoring is needed while taking Ribavirin?
Regular blood tests (hemoglobin, white cell and platelet counts), kidney and liver function tests, thyroid function tests, and pregnancy tests (where applicable) are needed throughout Ribavirin therapy because of risks of anemia and other blood, organ, and mood-related side effects.
What should I do if I miss a dose of Ribavirin?
Take the missed dose of Ribavirin as soon as you remember, unless it is close to the time for your next dose - in that case skip the missed dose and continue your normal schedule. Do not double the dose. Contact your physician if you miss doses frequently, as consistent use is important for Ribavirin to work.
Who should not take Ribavirin?
Ribavirin should not be taken by pregnant women or the male partners of pregnant women, anyone with a known hypersensitivity to it, patients with certain blood disorders (such as thalassemia major or sickle-cell anemia), autoimmune hepatitis, severe or unstable heart disease, significant kidney impairment, or anyone taking didanosine. See Contraindications for full details.
Disclaimer
The information provided is accurate to the best of our knowledge, but it does not replace professional medical advice. We cannot guarantee its completeness or accuracy, and the absence of specific information about a drug should not be taken as an endorsement. We are not responsible for any consequences arising from this information, so please consult a healthcare professional for any concerns or questions.