I think you mean, INR - International Normalized Ratio or something. Basically, it means your body is clotting wounds much slower. A high INR means you may have bruising, bleeding, or other symptoms characteristic of low coaguability. It may be reversible with Vitamin K - ask your healthcare practitioner - but this is not an instant reversal. If you discontinue your coumadin, the INR will return to normal in a few days time, but do not discontinue your coumadin without instructions from your healthcare practitioner. Hope this helps.