Hey guys, I just purchased some ephedrine, caffeine, aspirin and yohimbine to put together an ECY-A stack, but then I came across this information in another post:
ln a study held in 1998, when overweight and obese people were given a combination of Ephedrine, Caffeine and Yohimbe stack, and asked to exercise, the doctors that did the study found that the addition of Yohimbine (10mg/d) increased blood pressure and heart rate while decreasing the heart's efficiency of pumping blood! This increased the load on the heart during work or exercise that could potentially lead to a heart attack or stroke! But Ephedrine (50mg/d) + Caffeine (400mg/d) alone, had no such effect on heart function. So forget any supplement product on the market that has all of them at the same time, and forget any combination like that, for your own good. Reference: "Cardiovascular effects of Ephedrine, Caffeine and Yohimbine measured by thoracic electrical bioimpedance". Clin. Physiol.1998
I know plenty of people on this board have used ECY stacks and I was just wondering if you guys could just let me know if you've ever had any problems or if you think the risks are minimal. I've used ECA stacks before just never threw in the yohimbine, and now I'm kind of reluctant to do so... Thanks guys!