Will not use Trulicity® if you or any of All your family members have at any time had a type of thyr oid most cancers named medullary thyr oid carcinoma (MTC).In scientific tests with rodents, RYBELSUS® and medicines that work like RYBELSUS® triggered thyr oid tumors, which includes thyr oid most cancers. It's not at all identified if RYBELSUS