Introduction: Chlorpromazine is a commonly used drug in several medical conditions associated with a wide range of side effects. Few cases of hemostatic disorder have been reported in the literature.
Case report: A 39-year-old man had previously been diagnosed with a cavernous malformation of the medulla oblongata. Chlorpromazine was started to treat persistent hiccups. Twenty days later, the patient presented hepatitis and a pruritic rash. Haemostasis tests revealed a prolonged partial thromboplastin time associated with isolated decrease of factor VIII level and anti-factor VIII antibodies. Magnetic resonance imaging revealed recent asymptomatic bleeding. Introduction of eptacog alfa and prednisone allowed clinical and biological improvement as well as a prolonged remission after 12 months of follow-up.
Keywords: Acquired haemophilia A; Autoimmunity; Chlorpromazine; Haemostasis; Iatrogenic disease.
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