Once the patients were diagnosed with SSNHL, detailed information of the clinical trial will be introduced. If the patient agreed to participate, he/she will be randomized. The experimental group receives additional oral topiramate for 6 weeks.
Both groups follow up at the clinic for at least 3 months. The pure tone audiometry and speech audiometry will be measured at the initial and end of follow-up.
Patients who were later diagnosed with cerebellopontine angle tumors, stroke, or Meniere's disease, will be excluded from this study.
The audiometry and other hearing outcomes will be analyzed at the end of the study. The treatment efficacy, and prognostic factors will be analyzed and reported. Data regarding adverse effects and drop-out will also be collected and reported.
