I'm taking EC at the moment and it's working great. Tried clen twice in the past and never saw results, just got terrible cramps! ECA is much easier 2 get and cheaper and will do the job
u took min. dosage and halfed and STILL had unbearable sides??? You weren't stacking with other supps?
Only thing i can think is that you are the minority who is very sensitive to stuff like this. I would try another product that uses another method (different receptors, cns stimulant, appetite suppression, thyroid hormone or mitchondria/atp affector).
I love albuterol. 6mg 3x a day coupled with a high protein, mod carb and low fat diet has done wonders for me. My fat loss is good and my cardio increases daily.