Mizolastine
Ribasphere is a brand name for ribavirin, an antiviral medication primarily used in combination with other drugs for the treatment of chronic hepatitis C virus (HCV) infection. It works by inhibiting viral replication and has been an important component of hepatitis C therapy regimens.
Ribasphere (ribavirin) is an antiviral medication used to treat chronic hepatitis C, typically in combination with other medications.
Key facts at a glance
- RxNorm
- 539482
- Generic
- Ribasphere
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Ribasphere is primarily indicated for the treatment of chronic hepatitis C virus (HCV) infection in combination with other antiviral agents. It may be used in patients with certain genotypes of HCV and is considered for both treatment-naive and treatment-experienced patients.
Ribavirin is a nucleoside analogue that interferes with viral RNA synthesis and replication. It acts as a guanosine analogue, disrupting the virus's ability to replicate its genetic material. The exact mechanism involves multiple pathways, including inhibition of inosine monophosphate dehydrogenase and incorporation into viral RNA leading to fatal mutations.
Ribasphere is a teratogenic medication and is contraindicated in pregnancy; both male and female patients must use effective contraception during treatment and for a period afterward. It is typically not used as monotherapy and is almost always combined with other antiviral medications. Common side effects include hemolytic anemia, fatigue, and gastrointestinal symptoms. Regular monitoring of blood counts and liver function is required during treatment.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 9, 2026. · Read our editorial policy