the majority of the studies, university, double blind, placebo controlled have been done using ephedrine, caffine, and sometimes asprin, the common dose is 20mg E 200mg C and 100mg A, taken 3 times a day, but there are studies that use up to 375mg of E a day! My point being, since the studies have used pure ephedrine and pure caffine, why not just take this? as oppossed to taking the herbal analog.....
this being said, i like 2 weeks of eca, and 2 weeks of clen