A plain-language guide to the oral medications used for Type 2 diabetes — metformin, SGLT2 inhibitors, GLP-1 agonists (including oral semaglutide), DPP-4 inhibitors, sulfonylureas and others — with brand names, what each does, and common side effects. Plus a careful look at supplements and 'miracle cures.' Part 3 of 5 in the Kenneth Tan Medical Clinic diabetes series.