Methylene Blue (Blue-Ash)
Methylene blue is a synthetic compound with medical applications, primarily used to treat methaemoglobinaemia, a condition that affects the blood’s ability to carry oxygen. It is also researched for potential effects on cellular energy and oxidative stress.
Uses & Benefits
- Oxygen transport: Treats certain cases of methaemoglobinaemia by helping restore normal oxygen-carrying capacity.
- Cellular energy: Investigated for its potential role in mitochondrial function and energy production.
- Antioxidant research: Studied for possible effects on oxidative stress, although evidence for clinical benefits is limited.
Common Side Effects
- Blue or green discolouration of urine.
- Nausea and abdominal discomfort.
- Headache or dizziness.
Important Information
Methylene blue can interact dangerously with certain antidepressants and other serotonergic medicines, potentially causing serotonin syndrome. It may also cause serious complications in people with G6PD deficiency.


