INTRODUCTION Caffeine benefits and harms in health is a very controversial subject for a scientific research. METHODS This is a systematic literature using PubMed database linking caffeine with the following keywords: 'vestibular', 'vertigo', 'vestibular function', 'caloric tests' e 'electronystagmography". RESULTS Thirty articles were found and ten were analyzed for fulfill the inclusion c...

The common investigations done were pure tone audiometry, electronystagmography, X-ray of the internal auditory meatus, CT-scan of the internal auditory meatus and X-ray of the cervical spine. After the examinations and investigations only 52 patients out of the 107 could be given any diagnosis. The most common diagnosis for the vertigo was Meniere's disease.