Firvanq
Firvanq is a brand-name oral solution containing vancomycin, an antibiotic used to treat certain bacterial infections in the intestine. It is primarily prescribed for Clostridioides difficile (C. diff) colitis and enterocolitis caused by Staphylococcus aureus when other treatments are not appropriate.
Firvanq is an oral vancomycin solution used to treat intestinal bacterial infections like C. diff colitis.
Key facts at a glance
- RxNorm
- 2000128
- Generic
- Firvanq
- 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.
Firvanq is used to treat Clostridioides difficile (C. diff) infection, which causes severe diarrhea and colon inflammation, as well as enterocolitis caused by Staphylococcus aureus. It is typically reserved for cases where other antibiotics cannot be used or have failed.
Vancomycin, the active ingredient in Firvanq, is an antibiotic that inhibits bacterial cell wall synthesis. By disrupting the bacteria's ability to build and maintain its cell wall, it effectively kills susceptible bacteria in the gastrointestinal tract.
Firvanq is for oral use only and should not be injected. Common side effects may include nausea, abdominal pain, or rash. Patients should complete the full course of treatment as prescribed and inform their doctor of any kidney problems or allergies before use. This medication is typically available by prescription only.
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 July 26, 2026. · Read our editorial policy