A Ginkgo Biloba-Associated Paranoid Reaction

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Sir: An increasing number of Americans are turning toward herbal medicines to treat their health problems. It is estimated that 25% of Americans seeking medical care use alternative therapies for their problems.1 However, approximately 70% of these patients do not inform their physicians about their use of herbal medicines.2 Herbal medicines may elicit changes in mood, thinking, or behavior,3 which may not initially be considered by a physician in the differential diagnosis. We report a case in which a patient with no previous psychiatric history developed overt paranoid ideation after treatment with Ginkgo biloba.​

Prim Care Companion J Clin Psychiatry 2000;2(5):183