Riboflavin 5'-Phosphate (Vitamin B2) Patient Guide
Riboflavin 5'-phosphate is the active form of vitamin B2, a vitamin needed for energy metabolism and healthy blood, skin, and nerves. It is prescribed when dietary intake or absorption is inadequate, or to treat or prevent riboflavin deficiency.
Use riboflavin 5'-phosphate exactly as prescribed, and ask your doctor or pharmacist whether it is appropriate for you. Seek urgent care for signs of a serious allergic reaction.
Key facts at a glance
- RxNorm
- 1925821
- Generic
- Riboflavin 5'-Phosphate
- Class
- unclassified
- Brands
- Photrexa, Epioxa
- Availability
- rx
- Lactation
- unknown
- Routes
- ophthalmic
- Forms
- solution
- 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.
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