What is added after metformin failure in the described plan?

• A. Discontinue medications
• B. Lifestyle only
• C. Use only injectable therapy
• D. Add insulin or other oral drugs

Answer: (D)

The main idea is stepwise intensification of therapy when metformin alone doesn’t achieve glycemic targets. Metformin is usually the first-line drug for type 2 diabetes, but if blood sugar remains above goal, the next move is to add another agent rather than stop treatment or rely only on lifestyle changes. This can mean adding another oral medication with a complementary mechanism (such as a DPP-4 inhibitor, SGLT2 inhibitor, or sulfonylurea) or starting insulin therapy. The goal is to address multiple aspects of glucose regulation, improve control, and reduce long-term complications.

Discontinuing medications isn’t appropriate because control is still needed. Relying on lifestyle changes alone isn’t enough to bring hyperglycemia under control when metformin isn’t meeting targets. Using only injectable therapy isn’t the standard immediate step after metformin failure; injectable therapy is typically added when needed after evaluating response to additional agents or when oral agents aren’t sufficient.