Pharmacology A patient is of warfarin therapy. All of the following drugs increase the risk of bleeding with warfarin except? A Isoniazid B Amiodarone C Carbamazepine D Cimetidine 💡 Explanation A patient is of warfarin therapy. All of the following drugs increase the risk of bleeding with warfarin except? ✓ Correct Answer: C. Carbamazepine