Methylene Blue
Provayblue is a brand-name medication containing methylene blue, primarily used to treat methemoglobinemia, a condition where hemoglobin cannot properly release oxygen to body tissues. It works by converting methemoglobin back to normal hemoglobin, restoring the blood's ability to transport oxygen.
Provayblue is a medication that treats methemoglobinemia by converting abnormal hemoglobin back to its normal form, restoring oxygen delivery in the blood.
Key facts at a glance
- RxNorm
- 1788985
- Generic
- Provayblue
- 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.
Treatment of methemoglobinemia (acquired and congenital), and used as a diagnostic dye for medical procedures. May be used in certain toxicology emergencies when indicated.
Acts as a reducing agent that converts methemoglobin to hemoglobin through a redox reaction, allowing the blood to resume normal oxygen-carrying and oxygen-delivering functions.
Should be administered under medical supervision. May cause discoloration of urine and skin (blue-green). Potential interactions with certain medications including serotonergic drugs. Contraindicated in patients with glucose-6-phosphate dehydrogenase (G6PD) deficiency. Use during pregnancy only if clearly needed.
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