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European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery

High-dosage betahistine dihydrochloride between 288 and 480 mg/day in patients with severe Menière's disease: a case series.


PMID 21626121

Abstract

The objective of this study was to evaluate the clinical benefit and the side effects of high dosages of betahistine dihydrochloride (288-480 mg/day) in patients with severe Menière's disease (MD). In this case series 11 patients with MD who had not responded sufficiently to a dosage of 144 mg/day of betahistine dihydrochloride were treated on an individual basis with daily dosages between 288 and 480 mg of betahistine dihydrochloride. The number of attacks per month and the side effects were monitored. Non-parametric tests were used for statistical analysis. As a result, the frequency and the severity of vertigo were significantly reduced in all patients. The side effects were mild, self-limiting, and did not require any change in the treatment strategy. Despite the considerable limitations of an observational study--in particular in MD--high dosages of betahistine dihydrochloride between 288 and 480 mg/day seem to be effective in patients who do not sufficiently respond to lower dosages. Moreover, such dosages are well tolerated.

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B4638
Betahistine dihydrochloride, ≥98%
C8H12N2 · 2HCl