I am of the opinion this product is bunk. I felt none of the usual sides even when I was at a 160mcg/day. I have tried UGL clenbuterol and can tell they were the shit , i would have shakes and accelerated heartbeats almost immediately . Would also get crazy cramps at times. Easy to tell difference. Could be that mine was fake clean? I hear good things about meditech so hard to judge the lab itself.. Has anyone tried this product ?