http://www.psycheducation.org/thyroid/HighDose.htmthis is an interesting article.....and while it isnt at all concerned with this subject... chek it out=
How does this work?
Seems like a strange idea, using these high doses. Does anyone know how this ends up having a mood stabilizer effect? Basically, the answer is no. Remember, T3 is the active version of thyroid hormone. The researchers point out that when someone becomes spontaneously hyperthyroid, from their own thyroid gland overproduction, they have increased levels of T3 as well as T4.
When T4 thyroid is given as a pill, from the outside, even at high doses, T3 levels are not abnormal. In this respect, the patient is not "hyperthyroid", at least in the same sense as if TSH went to zero from his or her own thyroid production. Thyroid hormone control is extremely complicated. Using high doses of thyroid is simply bumping a system we don't understand very well. Unfortunately, this is what similar to the situation we face using nearly any medication for bipolar disorder (although our understanding of the causes of bipolar disorder is improving rapidly).