@article{ref1,
title="Serious psychiatric and neurological adverse effects of herbal medicines -- a systematic review",
journal="Acta psychiatrica Scandinavica",
year="2003",
author="Ernst, E.",
volume="108",
number="2",
pages="83-91",
abstract="OBJECTIVE: Psychiatric and neurological patients  frequently try herbal medicines often under the assumption that they are safe.  The aim of this systematic review was to provide a summary of recent data on  severe psychiatric and neurological adverse effects of herbal remedies. METHOD:  Computerized literature searches were carried out to identify all reports of  psychiatric and neurological adverse effects associated with herbal medicines.  These data were subsequently extracted, validated and summarized in narrative  and tabular form. RESULTS: Numerous case reports comprise a diverse array of  adverse events including cerebral arteritis, cerebral oedema, delirium, coma,  confusion, encephalopathy, hallucinations, intracerebral haemorrhage, and other  types of cerebrovascular accidents, movement disorders, mood disturbances,  muscle weakness, paresthesiae and seizures. Several fatalities are on record.  They are caused by improper use, toxicity of herbal ingredients, contamination  and adulteration of preparations and herb/drug interactions. CONCLUSION: Herbal  medicines can cause serious psychiatric and neurological adverse  effects.",
language="",
issn="0001-690X",
doi="",
url="http://dx.doi.org/"
}