25mcg is too much...cut it down to 12.5mcg/day.
You can run that dosage for 16-20 weeks if you want. Your TSH levels will always be within the low normal range (1.8-4). I have already done this.
Then once you come off....use 7-Keto DHEA at 300mg/day to bring back your TSH to above normal levels.
Its a very old trick...but it works wonders.
The problem is getting 25mcg T3 tabs and cutting them in half...lol Pain in the ass.
Fonz