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1 Department of Neurology, Baylor College of Medicine; Baylor-Methodist Center for Cerebrovascular Research, Houston, Tex.
In ten patients with chronic ischemic cerebrovascular disease, regional cerebral blood flow measurements were performed using clearance of xenon 133 and the gamma camera before and seven to eight days after initiation of oral betahistine therapy. Regional cerebral blood flow (rCBF) showed statistically significant increases after medication. Of the 115 regions of the cerebral hemispheres measured, 63 per cent showed significant increases in rCBF while only 5 per cent showed significant reduction, taking into account the reproducibility of the method of measurement. It is concluded that orally administered betahistine hydrochloride is a potent and effective drug for increasing cerebral blood flow in patients with cerebrovascular disease.
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