I started taking PTU from this March with a dosage of 150mg/day (it seems that the doctor suggested inappropriate dosage
. I was supposed to take a larger dosage
at the beginning, which I found from the info
online later on). T3 and T4 got lower but insignificantly. Two months later, the dosage was increased to 250mg/day. About one and half months later, T3 and T4 decreased but were still above the normal range.