Assessment of efficacy and tolerance of a new anti-dizziness drug in acute vertigo.

Inclusion Criteria:

• Men or women
• Age 18 to 70 years
• Acute vertigo attack due to vestibular disorder

Exclusion Criteria:

• Signs of brain, brainstem and/or cerebellar dysfunction
• Concomitant central neurological disorder
• Psychogenic vertigo
• Use of ototoxic drugs causing vertigo or dizziness within the last month
• Use of anti-dizziness medications from the onset of symptoms, except if the dosage had been stable for at least 3 months