I am a 43 year old female. I was diagnosed in February (2008) with
Graves’
Disease. I was started on methimazole (10mg 3x/day). In March I was switched to PTU (50mg 2x/day) when I developed a rash from the methimazole, and after blood work (Free T3 1.6, Free T4 0.38, TSH 4.05). In April I went back for blood work (Free T3 1.69, Free T4 0.29, TSH 42.3) and my dose was lowered to 25 mg once/day. In May my labs indicated that I am still hypo from too much PTU (Free T3 2.06, Free T4 0.