DrJMW, works great. If you have T4, work up to 400mcg/day. If you're on T3, work up to 50mcg/day if it's your first time. If you really aren't seeing results, you can go as high as 75mcg/day. As for the ECA, it depends on what you're using for it for exact doses. I like 25mg Ephedrine HCL, 1 Anacin (300mg aspirin, 40mg caffeine), and a 200mg caffeine pill. If you have no ECA experience, start with once a day. Work up to 5 a day if you can handle it, most people go to 3 times a day.
-B