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Percentage improvement in frequency of vertigo attacks – peripheral paroxysmal vertigo. Reproduced with permission from FMira E, Guidetti G, Ghilardi L, et al 2003. Betahistine dihydrochloride in the treatment of peripheral vestibular vertigo. Eur Arch Otorhinolaryngol, 260:73–7. Copyright © 2003 Springer.
