T3 is an excellent med if used correctly. The trick IMHO is to get upto maximum saturation quickly as this is where it is most effective. I advocate and what works best for me is 8 weeks cycle. This is where you go up quick and hold (longer than 7 days) and then slowley taper down so TSH levels can adapt.
You need to know your body (i.e. saturation point). You need to be at saturation but NOT over active thyroid. Normarily this is somewhere between 100-150mcg ED (look for over active thyroid symptoms).
Here is how i run T3 for maximum benefit:
Days 1,2: 50mcgs
Days 3,4: 75mcgs
Days 5-18: 100 - 125mcgs
And HERE IS THE CRITICAL STAGE:
The SLOW taper. This is CRITICAL so that TSH levels
are allowed to adapt to the dosage so that there is no crash.
Days 19-22 : 125mcgs (or 100 depends on your max)
Days 23-26 : 100mcgs
Days 27-30: 75mcgs
Days 31-34: 50mcgs
Now, SUPER-SLOW(TSH will be VERY sensitive to ANY T3 now)
Days 35-41 : 37.5mcgs
Days 42-48 : 25 mcgs
Days 49-56 : 12.5 mcgs
8-weeks total.
Wrongun!