underactive thyroid
"Tirosint has been great for me. I have hypothyroidism and was starting to have recurring symptoms. Tirosint got rid of these symptoms. My recurring symptoms while on Levoxyl (but only after over ten years on it)  were- puffy face, constipation, fatigue. When I took Tirosint the symptoms were gone. I am very happy with Tirosint. I have no side effects."