Diazepam

From Simple English Wikipedia, the free encyclopedia

Diazepam (brand names: Valium, Dialar, Diazemuls, Diazepam Desitin, Diazepam RecTubes, Stesolid and Tensium) is a benzodiazepine which has a relatively long half-life. It is mostly used to treat anxiety[1], certain forms of epilepsy[1], muscle spasms (seizures[1]), fits[1], and sleeping problems. It can also be taken to help people relax before an operation or other medical or dental treatments. This is known as a pre-med.[1]

Diazepam
Clinical data
Pronunciation/dˈæzɪpæm/ dy-AZ-ip-am
Trade namesValium, Vazepam, Valtoco, others[7]
AHFS/Drugs.comMonograph
MedlinePlusa682047
License data
Pregnancy
category
Dependence
liability
High[2]
Addiction
liability
Moderate[3][4]
Routes of
administration
oral, intramuscular, intravenous, rectal, nasal,[6] buccal film
Drug classBenzodiazepine
ATC code
Legal status
Legal status
Pharmacokinetic data
Bioavailability76% (64–97%) oral, 81% (62–98%) rectal[12]
MetabolismLiverCYP2B6 (minor route) to desmethyldiazepam, CYP2C19 (major route) to inactive metabolites, CYP3A4 (major route) to temazepam
Metabolites
Elimination half-life(50 h); 20–100 h (32–200 h for main active metabolite desmethyldiazepam)[10][8][9]
ExcretionKidney
Identifiers
CAS Number
PubChem CID
IUPHAR/BPS
DrugBank
ChemSpider
UNII
KEGG
ChEBI
ChEMBL
ECHA InfoCard100.006.476 Edit this at Wikidata
 ☒NcheckY (what is this?)  (verify)


It works by increasing the levels of a calming chemical in the brain called gamma-aminobutyric acid (GABA). Like with other benzodiazepines, there is a risk of addiction if it is used for long periods of time. For this reason the drug is used to treat acute cases (2-4 weeks maximum) to avoid dependence.[1]

Pregnancy category: US:[14] D, AU:[15] C, UK:[1] 'You can take diazepam during pregnancy, but taking it for a long time, particularly towards the end of pregnancy, may make your baby drowsy after they are born'.

According to the World Health Organization diazepam is an essential drug. It has been the most prescribed medicine in the United States many times.

It is sometimes used recreationally to cause a calming effect. Diazepam has caused huge problems in Scotland in the past[16].

Taking diazepam[change | change source]

Most adults aged 18 years and over can take diazepam tablets and liquid. People aged over 65 might need to take a lower dose. Children aged 1 month and older can take it for muscle spasms. Diazepam rectal tubes can be used by adults and children.[1]

Conflicts (conditions)[change | change source]

Diazepam is not suitable for some people. To make sure that it is safe, report new, current, or past issues, such as:[1]

Conflicts with other medications[change | change source]

Some medicines affect the way diazepam works and increase the chances of side effects happening. Before taking diazepam, report other medications like:

Do not take herbal remedies for anxiety or insomnia, such as valerian or passionflower, with diazepam. They can increase the drowsy effects of diazepam and may also have other side effects.[1]

There is not enough information to say that other herbal remedies and complementary medicines are safe to take with diazepam. They're not tested in the same way as pharmacy and prescription medicines. They generally are not tested for the effect they have on other medicines.[1]

Side effects[change | change source]

Diazepam can cause severe allergic reactions. A doctor's appointment should be made if memory loss (amnesia) starts happening.[1]

Common side effects[change | change source]

There are things which help cope with common side effects. These common side effects of diazepam happen in more than 1 in 100 people:[1]

Rare/Serious side effects[change | change source]

Call a doctor or ambulance/emergency services straight away if these side effects appear:[1]

  • skin turns yellow, or whites of the eyes turn yellow (although this may be less obvious on brown or black skin)
  • seeing or hearing things that are not there (hallucinations)
  • thinking things that are not true (delusions)
  • falling over more often
  • unusual mood changes such as talking more than usual or feeling overexcited, agitated, restless, irritable or aggressive. These side effects are more likely in children or in > (over) 65s

These are not the complete list of side effects. For the complete list, see the leaflet inside of the medicine packet.[1]

Long term side effects[change | change source]

Diazepam can cause withdrawal symptoms if it is taken for a long time.

If diazepam is prescribed for more than 4 weeks, the dose may be reduced gradually when it is time to stop taking it to prevent withdrawal symptoms.[1]


  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 1.14 1.15 "Diazepam: medicine for anxiety, muscle spasms and seizures". nhs.uk. 2022-02-07. Retrieved 2024-05-31.
  2. Edmunds M, Mayhew M (2013). Pharmacology for the Primary Care Provider (4th ed.). Mosby. p. 545. ISBN 978-0-323-08790-2. Archived from the original on 14 January 2023. Retrieved 13 July 2020.
  3. Clinical Addiction Psychiatry. Cambridge University Press. 2010. p. 156. ISBN 978-1-139-49169-3. Archived from the original on 8 September 2017.
  4. Ries RK (2009). Principles of addiction medicine (4 ed.). Philadelphia: Wolters Kluwer/Lippincott Williams & Wilkins. p. 106. ISBN 978-0-7817-7477-2. Archived from the original on 8 September 2017.
  5. 5.0 5.1 "Valium". NPS MedicineWise. 31 January 2020. Archived from the original on 29 July 2020. Retrieved 9 January 2023.
  6. "Valtoco – diazepam spray". DailyMed. 13 January 2020. Archived from the original on 1 August 2020. Retrieved 13 February 2020.
  7. Cite error: The named reference auto was used but no text was provided for refs named (see the help page).
  8. 8.0 8.1 "Diazepam Tablets BP 10 mg – Summary of Product Characteristics (SmPC)". (emc). 16 September 2019. Archived from the original on 25 July 2020. Retrieved 25 July 2020.
  9. 9.0 9.1 "Diazepam Injection BP Summary of Product Characteristics (SmPC)". emc. 17 January 2022. Archived from the original on 25 January 2023. Retrieved 11 February 2024.
  10. 10.0 10.1 Cite error: The named reference Valium FDA label was used but no text was provided for refs named (see the help page).
  11. "Libervant- diazepam film". DailyMed. 27 April 2024. Retrieved 18 May 2024.
  12. Dhillon S, Oxley J, Richens A (March 1982). "Bioavailability of diazepam after intravenous, oral and rectal administration in adult epileptic patients". British Journal of Clinical Pharmacology. 13 (3): 427–32. doi:10.1111/j.1365-2125.1982.tb01397.x. PMC 1402110. PMID 7059446.
  13. Goodkin HP (2010). "Diazepam". In Panayiotopoulos CP (ed.). Atlas of Epilepsies. London: Springer. doi:10.1007/978-1-84882-128-6_263. ISBN 978-1-84882-128-6.
  14. Armstrong, Carrie (2008-09-15). "ACOG Guidelines on Psychiatric Medication Use During Pregnancy and Lactation". American Family Physician. 78 (6): 772–778.
  15. "Australian Product Information - VALIUM (diazepam)".
  16. "Street valium blamed for 'unprecedented' spike in drugs deaths". BBC News. 2019-01-28. Retrieved 2024-06-01.