Structure
Repaglinide is a meglitinide derivative with a pyridine ring, enhancing its binding affinity to pancreatic K⁺ channels.
Chemical Formula: C₁₀H₁₂N₂O

Mode of Action
K⁺ Channel Blockade: Stimulates insulin release by blocking ATP-sensitive K⁺ channels in pancreatic beta cells.
Rapid Onset and Short Duration: Targets postprandial hyperglycemia without causing prolonged hypoglycemia.
Uses
Type 2 Diabetes Mellitus: Controls postprandial blood glucose levels.
Combination Therapy: Often used with metformin or other antidiabetic agents for comprehensive glycemic control.