Topical clonazepam for Burning Mouth Syndrome: is it efficacious in patients with anxiety or depression?

Background

Burning mouth syndrome (BMS) is a chronic disorder characterized by pain in the oral cavity without clinically evident causative lesions. The etiology of this condition is poorly understood, and treatment can be challenging.

Method

A retrospective review of the medical records of 82 patients with BMS was performed. Data on demographics, BMS associated symptoms, symptoms’ intensity score (NRS: 0-10) and response to treatment with topical clonazepam were extracted from clinical notes based on a standardized clinical questionnaire. Differences in the symptoms’ intensity score between patients with or without concomitant anxiety/depression or systemic psychogenic medication use were analyzed using the Wilcoxon signed rank test.

Results

Among the entire cohort, the median symptoms’ intensity score at baseline was 4.5 and 3.0 at first follow-up, a statistically significant improvement (p <0.001; 95% CI). Among the subjects with anxiety/depression and those who were prescribed systemic psychogenic medications, the median symptoms’ intensity score at baseline was 5.0 and 3.0 at first follow up, a statistically significant improvement (p<0.001; 95% CI). Among those without anxiety/depression, the symptoms’ intensity score at baseline was 4.0 and 2.0 at first follow up, a statistically significant improvement (p< 0.05; 95% CI). The median symptoms’ intensity score for those who were not on any psychogenic medications at baseline was 4.0 and 2.0 at first follow up, a statistically significant improvement (p<0.001; 95% CI).

Conclusions

Clinicians are encouraged to prescribe topical clonazepam for BMS regardless of concomitant use of systemic psychogenic medications or comorbid mood disorders as it is an efficacious management approach in the presence or absence of these potentially complicating factors.

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