Thyroid desiccated
underactive thyroid
"I used to be on Armour...then it was unavailable for a while since they were reformulating it.  I don't know why they had to reformulate it.  It was working fine and is an old reliable drug.  After the reformulation, my side effects (that I didn't have before) included my feet cramping at night.....often.  Changed to Nature-throid and don't have that problem."