Diazepam - une benzodiazépine
Desitin
Peer reviewed by Sid DajaniLast updated by Michael Stewart, MRPharmSLast updated 15 Feb 2025
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Diazepam has a calming effect. It is prescribed for several different conditions.
Your course of treatment will be as short as possible. This can range from one single dose, to up to a maximum of four weeks of treatment.
Diazepam is likely to affect your reactions and ability to drive. These effects can last into the following day. It is an offence to drive while your reactions are impaired.
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About diazepam
Type de médicament | Une benzodiazépine |
Utilisé pour | Muscle spasms; convulsions caused by epilepsy or fever; anxiety; agitation or insomnia associated with anxiety; panic attacks; as a pre-med before surgery or medical procedures; alongside other treatments in alcohol withdrawal |
Également appelé | Desitin® (rectal solution) |
Disponible en | Tablets, oral liquid medicine, rectal tubes (enemas) and injection |
Diazepam works by affecting the way certain substances in your brain (called neurotransmitters) pass messages to your brain cells. It has a calming effect on various functions of your brain.
The calming effect is helpful in a variety of conditions which can be caused by anxiety, such as panic attacks, agitation and difficulties sleeping. The calming effect is also used to relax and/or sedate people who are having certain medical investigations or treatments. It is given as a pre-med, particularly during procedures that can cause anxiety or discomfort.
The calming action also helps to relax muscles. Diazepam is used to treat muscle spasm, and also to treat fits caused by epilepsy or fever. Rectal diazepam tubes (enemas) are often prescribed for the treatment of fits as they are useful where a quick effect is needed and where swallowing tablets or medicine is not practicable.
Diazepam can also be prescribed to help reduce withdrawal effects in people who are alcohol-dependent and who want to stop drinking.
However, diazepam is usually prescribed only for very short periods of not more than 1-3 weeks. If you take it for longer, the medicine may lose its effect (you may become tolerant to the effect), and if you stop it you may develop withdrawal symptoms. You may need to keep taking the medicine to avoid the withdrawal symptoms. This is known as drug dependence.
In addition, you may become addicted to diazepam. Addiction is different from dependence. You have an overwhelming craving for a drug, so that you feel compelled to take it even though it is harming you physically or affecting your life and relationships.
Before taking diazepam
Some medicines are not suitable for people with certain conditions, and sometimes a medicine can only be used if extra care is taken. For these reasons, before you start taking diazepam it is important that your doctor knows:
Si vous êtes enceinte ou si vous allaitez.
Si vous avez des problèmes respiratoires.
Si vous avez des problèmes de fonctionnement du foie ou des reins.
Si vous avez un problème de santé mentale. Il peut s'agir de psychoses, de dépressions, de troubles obsessionnels, de phobies ou de troubles de la personnalité.
Si vous avez déjà souffert d'une dépendance à la drogue ou à l'alcool.
If you have a condition causing severe muscle weakness called myasthenia gravis.
Si vous avez déjà eu une réaction allergique à un médicament.
Si vous prenez ou utilisez d'autres médicaments. Cela comprend tous les médicaments que vous prenez et qui sont disponibles sans ordonnance, ainsi que les médicaments à base de plantes et les médicaments complémentaires.
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How to take diazepam
Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about diazepam, and will also provide you with a full list of the side-effects which you could experience from taking it.
Take diazepam exactly as your doctor tells you to - the dose will be individualised to suit your needs. The directions for taking it will be printed on the label of the pack to remind you about what the doctor said to you. You could be asked to take just one single dose (if it is before a medical procedure, for example), or to take regular doses for a short while. If you are to take diazepam regularly, you could be asked to take one, two, or three doses a day. The course of treatment prescribed will be as short as possible. If you have any questions about how to take your diazepam, please ask your doctor or pharmacist for further advice.
If you have been prescribed tablets to take, swallow the tablet with a drink of water. You can take diazepam either before or after food.
If you (or your child) have been prescribed diazepam rectal tubes, carefully read the instructions on the label as soon as you collect your supply to make sure you know how to use them when needed.
Tirer le meilleur parti de votre traitement
Try to keep any appointments with your doctor. This is so your doctor can check on your progress.
Diazepam is likely to affect your reactions and ability to drive. It is an offence to drive while your reactions are impaired. Do not drive until you know how you react, especially when you first start treatment. Please also be aware that the effects of diazepam can last into the following day. Even if your driving ability is not impaired, should you drive, you are advised to carry with you some evidence that the medicine has been prescribed for you - a repeat prescription form or a patient information leaflet from the pack is generally considered suitable.
Do not drink alcohol while you are on diazepam. It will increase the risk of sedative side-effects.
If you are due to have an operation or any dental treatment, please tell the person carrying out the treatment that you are taking diazepam. This is because diazepam increases the effects of some anaesthetics.
Your doctor could recommend that you reduce your dose of diazepam gradually when it is time to stop taking it. This is to reduce the risk of you experiencing withdrawal effects. Follow carefully any instructions your doctor gives to you.
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Can diazepam cause problems?
Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains the most common ones associated with diazepam. You will find a full list in the manufacturer's information leaflet supplied with your medicine. The unwanted effects often improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any of the following continue or become troublesome.
Common diazepam side-effects | Que puis-je faire si je suis confronté à cette situation ? |
Sentiment de somnolence, de faiblesse ou d'étourdissement (ces symptômes peuvent persister le lendemain) | Ne pas conduire et ne pas utiliser d'outils ou de machines. Ne pas boire d'alcool |
Perte de mémoire, sentiment de confusion ou d'instabilité | If these become troublesome, speak with your doctor |
Se sentir (ou être) agressif | Cela peut se produire chez certaines personnes - informez-en votre médecin dès que possible. |
Si vous ressentez d'autres symptômes que vous pensez être dus au médicament, veuillez consulter votre médecin ou votre pharmacien pour obtenir des conseils supplémentaires.
How to store diazepam
Conservez tous les médicaments hors de la portée et de la vue des enfants.
Conserver dans un endroit frais et sec, à l'abri de la chaleur et de la lumière directes.
Informations importantes sur tous les médicaments
Informations importantes sur tous les médicaments
Ne dépassez jamais la dose prescrite. Si vous pensez que vous ou quelqu'un d'autre avez pris une dose excessive de ce médicament, rendez-vous immédiatement au service des accidents et des urgences de votre hôpital local. Emportez la boîte avec vous, même si elle est vide.
Ce médicament est pour vous. Ne le donnez jamais à d'autres personnes, même si leur état semble être le même que le vôtre.
Si vous achetez des médicaments, vérifiez auprès d'un pharmacien que vous pouvez les prendre en toute sécurité avec vos autres médicaments.
Ne gardez pas les médicaments périmés ou dont vous ne voulez plus. Apportez-les à votre pharmacie locale qui les éliminera pour vous.
Si vous avez des questions sur ce médicament, demandez à votre pharmacien.
Signaler les effets secondaires d'un médicament ou d'un vaccin
Si vous ressentez des effets secondaires, vous pouvez les signaler en ligne sur le site web de la carte jaune.
Autres lectures et références
- Manufacturer's PIL, Diazepam Desitin® 10 mg and 5 mg Rectal solution; Desitin Pharma Ltd , The electronic Medicines Compendium. Dated February 2019.
- Médicaments Complet BNF 89ème éditionBritish Medical Association et Royal Pharmaceutical Society of Great Britain, Londres.
Historique de l'article
Les informations contenues dans cette page sont rédigées et évaluées par des cliniciens qualifiés.
Prochaine révision prévue : 15 février 2028
15 Feb 2025 | Latest version

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