Document Type : Original Article

Authors

1 Nephrology Research Center, Tehran University of Medical Sciences, Tehran, Iran Department of Clinical Pharmacy, Tehran University of Medical Sciences, Tehran, Iran

2 Department of Clinical Pharmacy, Tehran University of Medical Sciences, Tehran, Iran

3 Department of Gastroenterology, ImamKhomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran

4 Department of Medicinal Chemistry, Tehran University of Medical Sciences, Tehran, Iran

5 Department of Internal Medicine, Imam-Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran

Abstract

Superwarfarin toxicity may be a serious problem. It needs high clinical suspicious in patients 
with bleeding diathesis without hematologic or liver diseases even in patients with apparent 
negative history of warfarin or other anticoagulant accessibility. Here we reported a 
patient with a negative history of any medical diseases or drug administration who was 
referred with generalized ecchymosis. Increased international normalized ratio and decreased 
vitamin K‑dependent coagulation factors were detected in this patient. His hematologic and 
liver evaluations were normal. Clinical pharmacist emphasis in taking history revealed using 
anticoagulant rodenticide all over the farm the patient lived in that might result in unaware 
intoxication in this patient who suffered dementia.

Keywords

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