I agree, I absolutely plan to use a healthcare professional for this. We live in a very remote area and to leave we need to take 2 ferry's (approx 5hrs) to get to Vancouver, BC. So in the meantime I just wanted to start him on the magnesium. The pharmacist here was clueless on this matter so my son has an appt with our GP next week to see what we can do about finding a more suitable dr or healthcare professional to help us with this. I realize this is too important for me to take on alone, thats why I am so grateful for your help.