The medication contains T 1, 2, 3, 4, and calcitonin, all of which are produced by a healthy
thyroid. It is not true that
Armour is difficult
to regulate or dirty. In fact, Armour batches have been recalled less frequently than their synthetic counterparts.
This is not to say Armour is any better or worse; it is simply important to remember that different patients respond to different medications, and T4-only medications don't work for everyone.