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Diazepam
Diazepam is a benzodiazepine sleeping pill. It's also known by the trade names Dialar, Diazemuls, Diazepam Desitin, Diazepam RecTubes, Stesolid and Tensium.
Diazepam is a class C controlled medicine. The National Institute for Health and Care Excellence (NICE) has information about controlled medicines.
The main reliable source of information about this drug is its official Patient Information Leaflet (PIL). This will explain what it can be precribed for, how to take it, possible side effects and key safety information.
This leaflet should come inside the box. Or you can download a PDF version of the PIL for this drug here:
Drugs can come in different forms and doses. You should look at the PIL for the specific form and dose your doctor has prescribed for you.
These websites also have trustworthy information about this medicine:
If you have specific questions about your medication you can:
Ask your doctor, or whoever prescribes your medication
Speak to someone at a pharmacy
Contact NHS 111 in England, or NHS 111 in Wales
If you get any side effects from this drug, you can report them to the manufacturer using the Yellow Card scheme. This helps them give better information about it. Visit the Yellow Card scheme website to learn more.
About sleeping pills and minor tranquillisers
This is a broad group of different drugs that cause sedation. This means they slow down something down in your body, like your breathing, heartbeat or thought processes.
They can be prescribed for:
Severe anxiety problems
Difficulty sleeping (insomnia)
We have more articles explaining what these drugs are, what side effects they can cause, possible withdrawal effects, and comparison tables.
Go to sleeping pills and minor tranquillisers hub
You can also browse our full A–Z of sleeping pills and minor tranquillisers to find others.
More support and advice about medication
Our articles are here to support you:
Understanding medication. If you're new to the subject, this is your introduction to what mental health medication all about.
What to consider before taking medication. This is a practical guide with checklists to help you make an informed choice.
Coming off medication. Here you'll find articles about making your decision to come off, planning withdrawal, and managing withdrawal symptoms.
How to get help from your GP. Get tips on how to talk to your doctor, and what might happen when you see them.
We also have information on other treatments, like talking therapies and alternative therapies. See all the types of therapy, medication and treatments we cover.
Published: November 2026
Next review planned: November 2029
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