Use of this drug may induce twilight states or parasomnias (e.g., sleepwalking) and complex sleep-related behaviours. In addition, the user may not remember activities they do before they fall asleep or during nocturnal awakenings.
Due to the lactose content, this drug is contraindicated in the event of congenital galactosaemia, glucose or galacotse malabsorption syndrome or lactase deficiency.