Abstract
We present a case of acute tolterodine overdose with anticholinergic toxidrome including drowsiness, confusion and pyrexia. Tolterodine was commonly used in recent years for the treatment of overactive bladder syndrome. Experience with acute tolterodine poisoning was limited. The pharmacology, clinical use and side effects of tolterodine were reviewed. The clinical manifestations, toxicology and management of tolterodine poisoning are discussed.