1. About temazepam

Temazepam belongs to a group of medicines called benzodiazepines.

It's used to treat sleeping problems (insomnia).

It can also be taken to help you relax before an operation or other medical or dental treatments. This is known as a "pre-med".

It comes as tablets or as a liquid that you swallow.

Temazepam is available on prescription only.

2. Key facts

  • The most common side effects include feeling drowsy or lightheaded, and having a dry mouth.
  • It's not recommended to use temazepam for longer than 4 weeks.
  • If temazepam affects your eyesight or makes you feel sleepy, dizzy or confused, do not drive or use tools or machines until you feel OK again.
  • Do not drink alcohol when taking temazepam.

3. Who can and can't take temazepam

Temazepam can be taken by adults over the age of 18.

It's not suitable for everyone.

To make sure it's safe for you, tell your doctor before starting temazepam if you:

  • have had an allergic reaction to temazepam or any other medicine in the past
  • have myasthenia gravis, a condition that causes muscle weakness
  • have sleep apnoea, a condition that causes breathing problems when you're asleep
  • have severe lung or liver problems
  • have a mental health problem, such as depression, obsessive compulsive disorder, personality disorder or thoughts of suicide
  • have acute narrow angle glaucoma, a condition that affects the eye
  • are trying to get pregnant, are already pregnant or breastfeeding

4. How and when to take it

You'll usually take it once a day, half an hour before bedtime.

It's important to take it exactly as your doctor has told you. Your doctor may recommend taking it only 2 or 3 nights a week.

Take temazepam tablets or liquid with a drink of water. You can take it with or without food.

Liquid temazepam comes with a syringe or spoon to help you take the right amount.

Do not use a kitchen teaspoon as it will not give you the right amount.

If you do not have a syringe or spoon, ask your pharmacist for one.

How much will I take?

The usual dose for sleep problems is 10 to 20mg half an hour before going to bed.

In some cases, your doctor may prescribe a higher dose of 30 to 40mg.

If you're over 65 and at risk of falling over, your dose may be lower.

How long will I take it for?

You'll usually take temazepam for no longer than 4 weeks.

What if I forget to take it?

If you forget to take it by bedtime, just start again the next night.

What if I take too much?

The amount of temazepam that can lead to an overdose varies from person to person.

5. Side effects

Like all medicines, temazepam can cause side effects, although not everyone gets them.

Common side effects

These common side effects happen in more than 1 in 100 people.

Talk to your doctor or pharmacist if these side effects bother you or do not go away:

  • disturbed sleep (such as vivid dreams)
  • feeling drowsy, tired, less alert or "hungover" the next day
  • feeling lightheaded, unsteady or dizzy
  • a dry mouth

Serious side effects

It happens rarely, but some people have serious side effects when taking temazepam.

Tell a doctor straight away if you get any of the following side effects:

  • yellow skin, or the whites of your eyes turn yellow – this can be a sign of liver problems
  • difficulty peeing or peeing less than usual
  • an abnormal heartbeat (palpitations)
  • changes in the way you feel or act, such as feeling numb or restless, agitated, aggressive or acting inappropriately
  • you think things that are not true (delusions) or you see or hear things that are not there (hallucinations)
  • poor co-ordination or weak muscles
  • slurred speech
  • memory loss or confusion

Serious allergic reaction

In rare cases, temazepam may cause a serious allergic reaction (anaphylaxis).

These are not all the side effects of temazepam.

For a full list, see the leaflet inside your medicine packet.


You can report any suspected side effect to the UK safety scheme.

6. How to cope with side effects

  • disturbed sleep (such as vivid dreams) - speak to your doctor; they may suggest a different medicine or a lower dose.
  • feeling lightheaded, unsteady or dizzy - try to lie down or sit down until it passes. Do not try to drive or use machinery until you feel completely normal again. If the symptoms do not disappear after a few days or get worse, consult your doctor.
  • feeling drowsy, tired, less alert or "hungover" the next day - speak to your doctor; they may suggest a lower dose. Do not drive or use machinery until you feel better.
  • dry mouth - if this bothers you, try taking sips of water and keep some water by your bed at night. Using a mouthwash before bedtime may also help. Ask your pharmacist to recommend one that's good for a dry mouth, as some can make a dry mouth worse.

7. Pregnancy and breastfeeding

Temazepam is not usually recommended during pregnancy.

If you become pregnant while taking temazepam, speak to your doctor. They'll want to review your medicine.

You may need to keep taking temazepam during pregnancy to remain well.

Your doctor can explain the risks and the benefits to help you decide which treatment is best for you and your baby.


If you're having sleeping problems, talk to your doctor or pharmacist as there may be other ways of improving your sleep that do not involve taking temazepam.

But if your doctor or health visitor says your baby is healthy, temazepam can be used during breastfeeding at low doses occasionally, or for a short time.

Temazepam passes into breast milk in small amounts, but it's unlikely to cause any side effects in your baby.

If you take temazepam while you're breastfeeding and you notice that your baby's not feeding as well as usual, seems unusually sleepy, or you have any other concerns about them, talk to your health visitor or doctor as soon as possible.

8. Cautions with other medicines

Some medicines and temazepam can interfere with each other and increase the chances of you having side effects.

Before you start taking temazepam, tell your doctor if you're taking:

9. Common questions

Related conditions

Page last reviewed: 12/03/2019
Next review due: 12/03/2022