Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Warfarin sensitivity ?
    ### Response:
    Warfarin sensitivity is a condition that is characterized by a reduced tolerance for a "blood-thinning" medication called warfarin. Warfarin is an anticoagulant that is often prescribed to people who are at an increased risk for blood clots. People with a warfarin sensitivity respond more strongly to lower doses of warfarin and are, therefore, more likely to experience an overdose or other serious side effects from the medication.
    