Interaction between warfarin and the herbal product quilinggao.

  title={Interaction between warfarin and the herbal product quilinggao.},
  author={Anna L N Wong and Thomas Yan Keung Chan},
  journal={The Annals of pharmacotherapy},
  volume={37 6},
OBJECTIVE To describe a patient with loss of anticoagulation control and bleeding after consumption of the combination herbal product quilinggao. CASE SUMMARY A 61-year-old man who was stable on warfarin therapy regularly consumed a jelly-like herbal product called quilinggao ("essence of tortoise shell"). Five days after the daily consumption of a second brand of quilinggao, he developed easy gum bleeding, epistaxis, and skin bruising with an international normalized ratio (INR) >6.0… CONTINUE READING


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