Non-fatal intoxications involving the novel benzodiazepine clonazolam: case series from the Emerging Drugs Network of Australia - Victoria project.

Clonazolam intoxication resulted in sedation with mild sinus tachycardia. Three patients who reported multiple tablet exposures experienced prolonged sedation, and two of these patients developed airway obstruction. In this series, clonazolam was unknowingly ingested through possible illicit substitution within an unregulated counterfeit benzodiazepine product.