I'm going to one better you guys 'cause I don't even think 1/2 mg is necessary. I'm of the opinion that one should start out with 1/2 mg eod and, if needed, bump the dose up from there. I say that because a doc prescribed 1/10 mg eod which was from a compounding pharmacy (College) and that small amount actually worked wonders for me. So start low and go from there, the stuff's just too damn expensive and unnecessary to do that much.