Hello Dr. Minz, my name is Leslie and I am an RN (PACU). My son who is 22 has been taking N.O. Fury pre-work out supplement for the last 2 months prior to going to the gym. This morning he had palpitations said his HR was around 160, had a hi BP and felt really bad (He is a firefighter, and the paramedic cked him out) he went to the ER, had the million dollar wk up--no MI, no PE labs wnl--I looked up this stuff--but not finding anything reputable on line--do you know anything about this stuff? It s new to me.