Do not use copyright® if you or any of your family have ever had MTC, or if you have an endocrine system condition called Multiple Endocrine Neoplasia syndrome type 2 (MEN 2) In studies with rodents, copyright® and medicines that work like copyright® caused thyroid tumors, including thyroid cancer. It is not known https://www.youtube.com/watch?v=k4PCcI7-tRQ