Kath (Sydney) on 09/13/2023:
I buy mine from Amazon, brand CZTL which is USP pharmaceutical grade. Comes in 1mg vials. For 1% MB solution dissolve 1g powder in 100mls filtered water. I'm not sure how to work out the dose from your source. CZTL provide instructions, a low starting dose is 1-2mg (2-4 drops). I take 20 drops which is approx 3/4 tspn./10mg. An empty capsule holds about 1/3 tspn. I see where people take 0.5mg per kg. In your 50kg case that's 25mg. I think that's too much personally, just going by how I can feel the mind alertness and physical energy with just 10mg, I'm 75kg.
Anyway start off low a few drops and take it from there. Never take more that 1mg per kg body weight. Also an easier way than capsules (MB melts them) is to just get Vitamin C powder, ascorbic acid. You won't get blue mouth. Just 1/2 tspn in water with MB drops. They have synergy, creating a clear liquid called leukoMethylene Blue with increased antioxidant power. Also if you spill any which you will haha, put Vit C powder straight on the stain it immediately disappears.
View Entire Thread
Sam (Miami) on 01/08/2023:
Recommended safe doses based on clinical studies with animals and humans ranges from 0.5 – 4 mg/kg. So a 90 kg (200 lb.) body weight translates to 45 – 360mg of Methylene Blue. Compas Laboratory sells 50ml 0.5% solution, 1drop=0.25mg. So a 45kg person should start with 0.5*45kg=22.5mg=90 drops. 90kg person 180 drops.
If the concentration of the solution is different: from 0.1% to 2%, adjust accordingly. The manufacturer usually says how many mg in 1 drop of each solution they sell.
