Methylene blue (ProvayBlue) is a thiazine dye that’s FDA approved to treat methemoglobinemia, a serious condition where red blood cells can’t deliver oxygen properly to the body. It’s also used off-label for conditions like malaria, shock, and as a diagnostic aid for imaging. The medication is typically given intravenously (IV) by a healthcare professional to adults and children who are in the hospital. The dosage is based on body weight. Side effects include headache, diarrhea, and low potassium or magnesium levels in the blood.
Overview
- Condition: New
Features:
- Methylene blue is a salt used as a dye and as a medication. As a medication, it is mainly used to treat methemoglobinemia.



