- Treatment with any other oral or parenteral antidiabetic medications different from metformin monotherapy, including but not limited to Dipeptidyl peptidase-4 (DPP-4) inhibitors, Sulphonylureas, thiazolidinediones, insulins and Glucagon-like peptide-1 receptor agonist (GLP-1RAs); Sodium-glucose co-transporter 2 (SGLT-2) inhibitors and investigational agents