A Z-drug for short-term insomnia
Zaleplon
A very short-acting Z-drug sleeping tablet for short-term insomnia.
What is Zaleplon?
Zaleplon is a Z-drug, a non-benzodiazepine sleeping tablet used for short-term insomnia. It is very short-acting, so it mainly helps with falling asleep and should only be taken when you have a full night ahead. It is for short-term use because dependence can develop, and you should not drive if you feel drowsy.
Education and reference only. This is a plain-language guide to Zaleplon — it deliberately contains no doses. Doses depend on the person, the brand and the reason for treatment, and belong with your prescriber. Always check the BNF, the product labelling (SmPC) and follow medical advice.
What it is
Zaleplon is a Z-drug, a non-benzodiazepine sleeping tablet (hypnotic) used for short-term insomnia. It is notable for being very short-acting, meaning it works and wears off quickly. This makes it particularly useful for people who have trouble falling asleep, rather than staying asleep.
How it works
Zaleplon works on the same GABA system in the brain as benzodiazepines, boosting this natural calming chemical to make it easier to fall asleep. Because it is broken down quickly, its effect is brief, helping you drop off without lingering as long into the next day.
Company & origin
Originated / developed by: Branded as Sonata..
Zaleplon is a Z-drug, a non-benzodiazepine sleeping tablet that is very short-acting.
What it treats
Conditions Zaleplon is used for
Practical use
How to take Zaleplon
General, dose-free guidance — always follow your prescriber's and the leaflet's specific instructions.
- Take it just before bed, or when you are in bed and having trouble falling asleep, only if you still have a full night ahead.
- Because it is very short-acting, do not take it if you cannot allow time for a complete night's sleep.
- Use it for the shortest time possible; it is not intended for long-term nightly use.
- Do not drink alcohol while taking it, as this increases sedation.
- Do not drive or operate machinery if you feel drowsy.
Weighing it up
Advantages & disadvantages of Zaleplon
Advantages
- Helps you fall asleep, useful when getting off to sleep is the main problem.
- Very short-acting, so it is less likely than longer-acting sleeping tablets to cause next-day drowsiness.
- Taken only at bedtime as a short course.
Disadvantages
- Very short action means it does little to keep you asleep through the night.
- Can cause dependence, so it is only suitable for short-term use.
- Should only be taken with a full night ahead, which limits flexibility.
Practical use
Good to know
Zaleplon is very short-acting, so only take it when you can devote a full night to sleep ahead of you. It is for short-term use only because dependence can develop. Take it just before bed, avoid alcohol, and do not drive if you feel drowsy.
Who should not take it / use with caution
- People with a known allergy to zaleplon.
- People with severe breathing problems, sleep apnoea or severe liver impairment.
- Used with caution in older people because of the risk of falls and confusion.
Monitoring
- Regular review of whether the medicine is still needed, keeping use short.
- Watch for next-day drowsiness, falls and signs of dependence.
- Plan a gradual reduction if it has been used regularly.
Side effects
- Drowsiness and tiredness, although less next-day effect than longer-acting tablets.
- Dizziness and unsteadiness, with a risk of falls in older people.
- Memory problems or confusion.
- Rarely, complex sleep behaviours such as carrying out activities while not fully awake.
- Dependence and rebound insomnia with regular use.
Key interactions
- Alcohol increases sedation and should be avoided.
- Strong painkillers (opioids) and other sedating medicines add to drowsiness and slowed breathing.
- Some medicines that affect the liver can change zaleplon levels.
- Tell your team about all your medicines, including those bought over the counter.
Available as: Capsules.
Answers
Zaleplon: frequently asked questions
How is zaleplon different from other sleeping tablets?
Zaleplon is a Z-drug rather than a benzodiazepine, and it is very short-acting. This makes it most useful for falling asleep, and it is less likely to leave you drowsy the next day, but it does little to keep you asleep through the night.
When should I take it?
Take it just before bed, and only when you can still allow a full night's sleep ahead. Because it is short-acting, it can sometimes be taken if you wake and cannot get back to sleep, provided you have several hours of sleep time left.
How long can I take zaleplon for?
It is intended for short-term use only. Regular long-term use can lead to dependence and to rebound insomnia when stopped.
Can I drive after taking it?
Do not drive if you feel drowsy. Although it is short-acting, it can still affect alertness and reactions, so wait until you feel fully awake.
Can I drink alcohol with it?
No. Alcohol adds to the sedating effect and can be dangerous. Avoid alcohol while taking zaleplon.
The wider class
About Benzodiazepines & Z-drugs
Zaleplon belongs to the benzodiazepines & z-drugs class. For how the class as a whole works, its shared safety principles and monitoring, see the full guide.
Browse by body system
Authoritative sources
- BNF: Zaleplon.
- NICE CKS: Sleeping pills and minor tranquillisers.
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