Review on Biopharm Methylene Dispensing Formaldehyde Antioxidant by David Golden

I am battling a case of non-covid viral bronchitis and bought this because of the antiviral properties of methylene blue. On the plus side, it reduced my dryness redness almost immediately. However, about 30 minutes after taking it, I thought I needed to go to the emergency room. I don't think I've ever felt so bad in my life. Weakness, disorientation, blurred vision, total annihilation. This finally passed within the next three hours. Since it worked so well for nasal congestion, I thought I'd try again the next morning. the same bad reaction. It's probably just a situation where I'm overly sensitive to it for some reason, but something to be aware of, especially if you're prone to allergies or sensitivities. (The dosage was 10 drops per glass of water)