Zaleplon-induced Anemsic Somnambulism with Eating Behaviors Under Once Dose.

PURPOSE Zaleplon is a newly-developed rapid-acting non-benzodiazepine hypnotic. Few reports discuss zaleplon-induced somnambulism. This report describes a patient without history of somnambulism, who developed amnesic somnambulism after taking low-dose of zaleplon. CASE REPORT A 43-year-old schizophrenic male without history of physical illness, seizure, or somnambulism developed amnesic somnambulism after taking once low-dose of zaleplon from the outpatient-department. Somnambulism did not reoccur after discontinuing zaleplon. However, similar behaviors recurred after accidentally prescribing zaleplon on the first-day of hospitalization. CONCLUSION This patient is the first case without history of somnambulism, who developed zaleploninduced somnambulism after taking low-dose of zaleplon. This study underscores the importance of monitoring for zaleplon-induced somnambulism, even when administering low-dosage to those without risk factors or history of somnambulism.