I started treatment with 25 mcg of
Synthroid, went to 38, 50, 75, 100, 125, and 150. Then I went hyperthyroid was was told to
cut dose
in half. I have now been on 75 for about 7 weeks. Originally I was told I needed to go to full replacement, which was supposed to be around 145 mcg. I am 6'3", 180 lbs. My TSH, FT4, and FT3 were as follows along the way:
Synthroid, TSH, FT4 (0.6-1.6), FT3 (2.3-4.2), TPO, cortisol (serum, 4-22)
0, 8.58, 0.