Levothyroxine
"Been taking levothyroxine for 11 days since diagnosed with hypothyroidism (T4 levels of 3 and TSH over greater than 100).  What a difference it's made?  Feel much better in myself, thyroid still enlarged (doctor didn't want to flood my system with too much thyroxine after such low readings but may increase after bloods are taken in 4 weeks) but it is getting smaller.  Eyesight much improved, leg pain gone, mood better and generally feel much improved.  Feel a lot more like my old self. Can't wait for the drugs to really kick in. Marvellous."