My son takes magnesium for several years on the advice of Dr. Mousain Bosc (read his book). At first it was taking magnéB6 "traditional" and since their delisting, it takes 6 magnesium 1. It takes up to 3 tablets not next day situations. My son 13 years now. He has an attention disorder which forced us to the out of school. Big problem with speech and opposition (among others). With this drug, my son usually speaks when he could not finish his sentences and there is more opposition. A real treat !!! Better than the previous remedy. Certainly more expensive but more efficient !!! This brand is really fantastic and I say thank you for our family life to change. And for those who know the family life with ADD know what I mean !!!