i have been taking t3 (lyothyrine) from gp at 50mcg per day but never feel well on it. neither did i feel well on thyroxine. i spoke to dr peatfield a couple of years ago and he recommended cynomel from mexico which i ordered. i have 3 pots of it and have started taking it and feel better. i bought it over a year ago but as i got prescription for t3 from gp never took it. i have just looked up mexican pharmacy where i bought from and its discontinued so where can i buy it. it is by grossman.