I've studied sympathomimetic drugs like ephedrine at uni and I HIGHLY recommend you don't take anything with Ephedrine in, there can be some very nasty side effects. If you want a fat burner try Euro Stacker 4, no ephedrine in there.. But as above, running in the morning before breakfast and eating less (don't use a treadmill, they don't work you as hard) Oh, and yohimbine is used to treat erectile dysfunction lol