Effect of triiodothyronine (T3) augmentation of acute milnacipran administration on monoamine levels: an in vivo microdialysis study in rats

Background Up to 30% of depressed patients are partially or totally resistant to antidepressant therapy. The administration of triiodothyronine (T3) to antidepressant nonresponders can be an effective augmentation strategy, although the mechanism is not fully understood.