Caffeine effect in vestibular system.

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 criteria. These ten articles were grouped and then a separated in four groups, according to the approach.

Conclusion: There is a need of further randomized and controlled studies to understand the vestibular system.