http://www.medications.com/effect/view/38385 I was prescribed this drug in hopes of keeping thyroid nodules and goiter from growing larger. My TSH levels have always been in the normal range throughout my life, so the theory that "normal TSH' means a working, normal thyroid is absolutely untrue. I a Sat, 11 Jul 2009 08:53:45 -0400 http://www.medications.com/effect/view/38385?item=21381 you are telling my life story! I too have always had normal lab values even as I was being wheeled into the operating room to remove a goiter only to find out that I have cancer. I think those lab values are just not clinically callibrated correctly actual http://www.medications.com/effect/view/38385?item=21381