Metformin is one of the most prescribed diabetes medications, but do you really know how it works? 🎥 Watch the full breakdown on YouTube 👉 https://youtu.be/f74aZDsV7n4?si=etQKbt_j8gCMShQ1. A – Action: Improves insulin sensitivity, reduces liver glucose production, and slows gut glucose absorption B – But: Common side effects like GI upset and long-term B12 deficiency C – Contraindications: Kidney function (eGFR) monitoring is key D – Drug-Drug Interactions: Temporary hold before contrast dye