Diazepam
Prescription ·Exploratory record · not publication-reviewed ·Updated July 13, 2026
Prescription benzodiazepine (Schedule IV controlled substance) approved for anxiety disorders, acute alcohol withdrawal, muscle spasm, seizure disorders, and as a preanesthetic agent. One of the oldest and most well-studied benzodiazepines with the longest half-life in its class. Its active metabolite desmethyldiazepam further extends its duration of action. Dosage must be determined by your prescribing physician.
Exploratory record, not a reviewed medical publication.
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This generated database record has not completed a claim-level review by a qualified human medical reviewer. Bibliography links and evidence labels are not approval. The page remains available for reference and is excluded from search indexing.
What the research says.
A quick, data-only summary. The full evidence, dosing, and sources are below.
Prescription benzodiazepine (Schedule IV controlled substance) approved for anxiety disorders, acute alcohol withdrawal, muscle spasm, seizure disorders, and as a preanesthetic agent. NutriStack rates the supporting evidence as strong. Common adult dosing is 2–40 mg daily in divided doses (as prescribed by your physician), though a prescriber sets the actual dose. This profile indexes 10 sources.
The bottom line
Evidence rating strong. Most-documented uses: anxiety relief, muscle spasm reduction, acute alcohol withdrawal management. 10 sources indexed (1975–2023), with 0 interaction records on file.
How it works, mechanistically.
Core mechanism
Binds to the benzodiazepine site on GABA-A receptors, enhancing GABA-mediated inhibitory neurotransmission. Produces anxiolytic, sedative, anticonvulsant, and skeletal muscle relaxant effects. Highly lipophilic with rapid CNS penetration. Metabolized to active metabolites (desmethyldiazepam, temazepam, oxazepam) that prolong clinical effects.8,9
Dosing & protocol.
Rapidly and completely absorbed orally. Can be taken with or without food. Rectal gel available for acute seizure rescue.
Full safety detail.
Side effects
- Sedation and drowsiness
- Ataxia
- Cognitive impairment
- Dependence and withdrawal
- Respiratory depression
- Paradoxical agitation
- Anterograde amnesia
- Hypotension
Sources, by evidence tier.
Numbered references. Citations throughout the page link here.
Meta-analyses & systematic reviews
2- 1A Systematic Review of Intravaginal Diazepam for the Treatment of Pelvic Floor Hypertonic DisorderPMIDStone RH, Abousaud M, Abousaud A et al. · Journal of clinical pharmacology · 2020
Stone RH, Abousaud M, Abousaud A et al.. A Systematic Review of Intravaginal Diazepam for the Treatment of Pelvic Floor Hypertonic Disorder. Journal of clinical pharmacology. 2020
- 2Lorazepam or diazepam for convulsive status epilepticus: A meta-analysisPMIDWu W, Zhang L, Xue R · Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia · 2016
Wu W, Zhang L, Xue R. Lorazepam or diazepam for convulsive status epilepticus: A meta-analysis. Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia. 2016
Randomized controlled trials
2- 3The anxiolytic effects of preoperative administration of pregabalin in comparison to diazepam and placeboPMIDNimmaanrat S, Charuenporn B, Jensen MP et al. · Scientific reports · 2023
Nimmaanrat S, Charuenporn B, Jensen MP et al.. The anxiolytic effects of preoperative administration of pregabalin in comparison to diazepam and placebo. Scientific reports. 2023
- 4Diazepam/beta-adrenoceptor antagonist interactionsPMIDHawksworth G, Betts T, Crowe A et al. · British journal of clinical pharmacology · 1984
Hawksworth G, Betts T, Crowe A et al.. Diazepam/beta-adrenoceptor antagonist interactions. British journal of clinical pharmacology. 1984
Reviews & position papers
3- 5Safety and efficacy of diazepam autoinjector for the management of epilepsyPMIDVerrotti A, Milioni M, Zaccara G · Expert review of neurotherapeutics · 2015
Verrotti A, Milioni M, Zaccara G. Safety and efficacy of diazepam autoinjector for the management of epilepsy. Expert review of neurotherapeutics. 2015
- 6Phenytoin-diazepam interactionPMIDMurphy A, Wilbur K · The Annals of pharmacotherapy · 2003
Murphy A, Wilbur K. Phenytoin-diazepam interaction. The Annals of pharmacotherapy. 2003
- 7A review of the effects of diazepam on cognitive and psychomotor performancePMIDKleinknecht RA, Donaldson D · The Journal of nervous and mental disease · 1975
Kleinknecht RA, Donaldson D. A review of the effects of diazepam on cognitive and psychomotor performance. The Journal of nervous and mental disease. 1975
Reference material
3- 8Offidani E et al. Efficacy and tolerability of benzodiazepines versus antidepressants in anxiety disorders: a systematic review and meta-analysis. Psychother Psychosom. 2013.Source linkedPMID
- 9Greenblatt DJ et al. Clinical pharmacokinetics of the benzodiazepines. Clin Pharmacokinet. 1983.Source linkedPMID
- 10Roberts E et al. Pharmacological treatment strategies to manage precipitated withdrawal following the administration of buprenorphine in opioid use disorder: A systematic review. Addiction. 2026.Source linkedPMID
Common questions.
Quick answers about Diazepam, drawn from the data on this page.
What is Diazepam?
Prescription benzodiazepine (Schedule IV controlled substance) approved for anxiety disorders, acute alcohol withdrawal, muscle spasm, seizure disorders, and as a preanesthetic agent. One of the oldest and most well-studied benzodiazepines with the longest half-life in its class. Its active metabolite desmethyldiazepam further extends its duration of action. Dosage must be determined by your prescribing physician.
What is Diazepam used for?
Commonly cited benefits of Diazepam include: Anxiety relief; Muscle spasm reduction; Acute alcohol withdrawal management; Seizure control; Preoperative sedation. NutriStack rates the overall evidence as strong.
What is a typical dose of Diazepam?
A typical adult dose of Diazepam is 2–40 mg daily in divided doses (as prescribed by your physician). The commonly recommended form is Tablet, oral solution, rectal gel, or injectable. These are general ranges, not personalized advice; confirm the right dose with a clinician.
What are the side effects of Diazepam?
Reported side effects include sedation and drowsiness, ataxia, cognitive impairment, dependence and withdrawal, respiratory depression, paradoxical agitation. This is educational information; check with a healthcare professional before use.
How strong is the evidence for Diazepam?
NutriStack rates this as Strong, meaning multiple high-quality meta-analyses or systematic reviews converge on the same finding. Full tier criteria are at https://nutristackapp.com/methodology/evidence-tiers.
Use this with your stack
Diazepam in NutriStack.
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