I thought armour thyroid was old school medicine. I was hyperthyroid and then had radioactive iodine. I am now on 200 mcg of synthroid, I get labs about once a year now and have been stable on just that for about 10 years now. I have been told by several doctors that they like synthroid (not generic forms) the best because it seems to keep the blood levels stable. I am not sure about cytomel though I have never taken that or been recommended that medication.