Take this medication by mouth with a glass of water. It is only for use at bedtime. Follow the directions on the prescription label. Do not take your medication more often than directed. If you have been taking this medication regularly for some time, do not suddenly stop taking it. You must gradually reduce the dose or you may get severe side effects. Ask your care team for advice. Even after you stop taking this medication it can still affect your body for several days. A special MedGuide will be given to you by the pharmacist with each prescription and refill. Be sure to read this information carefully each time. Talk to your care team about the use of this medication in children. Special care may be needed.