Ditto what rev8ball said. That would be to much on your system IMO. I am using an "EC" stack without the asprin. I take 24mg of E and 200mg of C three times a day. It does not give me the jitters and I feel good on it. "it will very for everyone" I feel I have lost some fat while taking it and have energy! IT IS ONLY an aid, as I belive diet and a solid workout are everything for fat loss and getting in shape. BE CAREFULL when using fat burners especially ephedrine based ones. just be smart about what you do and be patient. results take time and diet is everything.