If his blood gets too thin, he might begin bleeding uncontrollably. He gets a little bit off. Then we have to really monitor him. And he said that he had noticed that his bleeding he cut his finger, and it was a little bit longer, and he started to bleed from his guns. Coumadin is extremely dose sensitive.
Small changes can have unpredictable results.
Drugs like Coumadin are called Narrow Therapeutic Index or NTI drugs, meaning dosage is critical to effective treatment. We re going to stay where we are on the prescription. We re going to monitor that Coumadin very closely, and right now we re going to check the urine just to be sure if you have any evidence of blood in your urine, then we might drop it back again. Double checking drug safety. Dose sensitivity is at the heart of a new Texas law.