Clinical Research Directory

Inclusion Criteria: * Subjective, non-pulsatile tinnitus of at least 6 months' duration * Stable tinnitus symptoms over the past 3 months * Willingness to participate and provide informed consent * Age between 18 and 70 years Exclusion Criteria: * Active psychiatric disorders requiring pharmacological treatment * History of psychotic illness or bipolar disorder * Current use of antipsychotics, antidepressants, or anticonvulsants * Severe hearing loss (threshold ≥ 80 dB in both ears) * Substance use disorders * Pregnancy or breastfeeding * Known hypersensitivity to olanzapine * Significant medical conditions (e.g., uncontrolled diabetes, hepatic impairment)