The Effect of Chewing Gum on Dizziness in Patients Diagnosed With Posterior Canal Benign Paroxysmal Positional Vertigo in the Emergency Department

Inclusion Criteria: * Aged 18-65 years * Duration of dizziness complaint less than 24 hours * Posterior canal BPPV diagnosis confirmed by the emergency physician via the Dix-Hallpike test * Intravenous administration of 50 mg dimenhydrinate in 100 cc 0.9% NaCl initiated by the responsible emergency physician * Symptomatic dizziness with VAS ≥ 4 * Alert, cooperative, and able to chew gum * Willingness to participate and provision of written informed consent Exclusion Criteria: * Findings suggestive of central vertigo (vertical nystagmus, diplopia, ataxia, hemiparesis, focal neurological deficit, etc.) * Pregnancy * Known gum intolerance, history of allergy to gum or its excipients, temporomandibular joint dysfunction, significant tooth loss, use of dentures or removable prosthetics that would prevent chewing * Altered level of consciousness * Central pathology detected on investigations performed during the visit * Hemodynamic and/or respiratory instability * Diagnosis other than posterior canal BPPV as the cause of vertigo * Treatment other than pharmacological therapy planned or already administered by the responsible emergency physician * Active vomiting at the time of enrollment * Severe dizziness with VAS ≥ 8 (excluded due to high likelihood of requiring additional treatment, risk of protocol deviation, and safety concerns regarding gum chewing) * Patients who initially consented but subsequently wish to withdraw from the study