Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Common side effects:
- short-term memory loss, or
- lack of coordination may occur, especially during the first 2 hours after you take the medication
Tell your doctor immediately if any of these unlikely but serious side effects occur:
- mental/mood changes (e.g., agitation, confusion, seeing/hearing things that are not there, rare thoughts of suicide),
- unusual behavior.
Rarely, after taking this drug, people have gotten out of bed and driven vehicles while not fully awake (“sleep-driving”). People have also sleepwalked, prepared/eaten food, made phone calls, or had sex while not fully awake. Often, these people do not remember these events. This problem can be dangerous to you or to others. If you find out that you have done any of these activities after taking this medication, tell your doctor immediately. Your risk is increased if you use alcohol or other medications that can make you drowsy while taking zaleplon.
This medication may cause withdrawal reactions, especially if it has been used regularly for a long time (more than a few weeks) or in high doses. In such cases, withdrawal symptoms (such as unusual depressed/anxious mood, stomach/muscle cramps, vomiting, sweating, shakiness, or seizures) may occur if you suddenly stop using this medication. To prevent withdrawal reactions, your doctor may reduce your dose gradually. Consult your doctor or pharmacist for more details, and report any withdrawal reactions immediately.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.