Sir, I am 40 yrs.and Thyroid diagose during Dec.,2010 T3 was 1.7 , T4 was .82 and TSH was 12.79 and thereafter Doctors have recomnded thyroxine sodium 50 mcg one tablet daily then on 6/5/11 Report was T3 1.78 , T4 .89 AND TSH WAS 13.70 AND DOCTOR HAVE CONTINUE THE TABLET BUT I AM WORRIED as my scin of hand have become some black colour . Sir, can you advice me to proceed further ? I will be highly oblidged for your advice . my e-mail id is : YYYY@YYYY