Valium Withdrawal & Tapering Guide
diazepam
Boxed Warning
Concomitant use with opioids may result in profound sedation, respiratory depression, coma, and death. Risks of abuse, misuse, and addiction, which can lead to overdose and death. Physical dependence and life-threatening withdrawal reactions.
In short
Valium (diazepam) is a Benzodiazepine with a half-life of 20–100 hours. Very long half-life — often used as the target drug for benzodiazepine crossover tapers. It is also sold as Diastat, Valtoco.
- Class
- Benzodiazepine
- Half-life
- 20–100 hours
- Common doses
- 2mg, 5mg, 10mg
Educational reference only. Dose changes are decided with the prescriber who knows your history.
Overview
Diazepam is a long-acting benzodiazepine approved for anxiety disorders, alcohol withdrawal, muscle spasm, seizures, and as a pre-anesthetic. Due to its long half-life, multiple tablet strengths, and smooth pharmacokinetic profile, it is the preferred benzodiazepine for crossover tapers.
2mg, 5mg, 10mg
Tablets: 2mg, 5mg, 10mg; Oral solution: 5mg/5mL; Oral concentrate (Intensol): 5mg/mL; Injection: 5mg/mL; Rectal gel (Diastat): 2.5mg, 10mg, 20mg
Category D (positive evidence of risk)
Mechanism of Action
Positive allosteric modulator at GABA-A receptors. Enhances GABA-mediated chloride conductance producing anxiolytic, sedative, anticonvulsant, and muscle relaxant effects. Multiple active metabolites (desmethyldiazepam, temazepam, oxazepam) prolong its duration of action.
Taper Notes
Very long half-life — often used as the target drug for benzodiazepine crossover tapers. Tablets easily split. Liquid formulation available.
Hyperbolic Tapering Guidance
Preferred benzodiazepine for tapering due to long half-life and available small doses. Ashton Manual taper schedules use diazepam as the standard.
Summary written by TaperCommunity, informed by the Maudsley Deprescribing Guidelines (Horowitz & Taylor) and related literature — see Sources & References below. Not affiliated with or endorsed by the Maudsley.
Common Withdrawal Symptoms
Interactions & Safety
Drug Interactions
- Opioids — FDA boxed warning: concurrent use increases risk of profound sedation, respiratory depression, coma, and death
- CYP3A4 inhibitors (ketoconazole, fluvoxamine) increase diazepam levels
- CYP2C19 inhibitors (omeprazole, fluvoxamine) increase diazepam levels
Food Interactions
- Food may delay absorption but does not reduce bioavailability
- Avoid alcohol (additive CNS and respiratory depression, potentially fatal)
- Grapefruit juice may increase levels via CYP3A4 inhibition
Contraindications
- Acute narrow-angle glaucoma
- Myasthenia gravis
- Severe respiratory insufficiency
Toxicity
CNS and respiratory depression (especially with opioids/alcohol). Physical dependence with chronic use. Extremely long effective half-life due to active metabolites can lead to accumulation in elderly. Abrupt discontinuation can cause seizures.
Pharmacokinetics
ADME Profile
Rapidly and completely absorbed after oral administration. Bioavailability ~100%. Tmax 0.5–2 hours. Food may delay absorption.
~0.8–1.0 L/kg
Hepatic via CYP3A4 and CYP2C19 to the long-acting active metabolite desmethyldiazepam (half-life 36–200 hours), then to oxazepam, and via CYP3A4 to temazepam (both active). Final elimination via glucuronidation.
Renal (primarily as glucuronide conjugates of metabolites). Very little unchanged diazepam in urine.
~98%
~20–30 mL/min (total body clearance)
Need a clinician who understands tapering?
Browse our map of deprescribing-informed providers worldwide.
Related Articles About Valium
Valium (Diazepam) Tapering Schedule: The Classic Benzo Taper
The safest way to come off Valium (diazepam) is a slow, patient-led taper that reduces your dose by a small percentage of your current amount, not a fixed number of milligrams. Most people do best cutting roughly 5 to 10 percent every 2 to 4 weeks, holding longer
Jul 5, 2026
Clonazepam vs Diazepam Withdrawal: Comparing Two Benzo Experiences
Diazepam (Valium) is the easier of the two to taper for most people, because its 20 to 100+ hour half-life keeps blood levels steady between doses. Clonazepam (Klonopin) is about 20 times stronger per milligram (0.5 mg ≈ 10 mg diazepam in the Ashton Manual) and clears faster, so
Jun 29, 2026
Other Drug Profiles
The arithmetic of a proportional reduction
The Maudsley Deprescribing Guidelines and NICE NG222 describe reducing benzodiazepines and related drugs by a proportion of the previous dose rather than by a fixed amount, so each cut is smaller than the last. The table shows what that arithmetic produces at 10% per step, using 5 mg only as a worked example. How large each step is, how long it is held, and whether this pattern applies at all are decisions for the person and their prescriber.
| Step | % of starting dose | Worked example (5 mg start) |
|---|---|---|
| Start | 100% | 5 mg |
| Step 1 | 90% | 4.5 mg |
| Step 2 | 81% | 4.05 mg |
| Step 3 | 73% | 3.65 mg |
| Step 4 | 66% | 3.28 mg |
| Step 5 | 59% | 2.95 mg |
| Step 6 | 53% | 2.66 mg |
| Step 7 | 48% | 2.39 mg |
| Step 8 | 43% | 2.15 mg |
This is an illustration of a published method, not a schedule for anyone. It does not account for how long you have taken Valium, your current dose, formulation, or history. TaperCommunity does not recommend doses or dose changes; those are agreed with your prescriber.
Frequently asked questions about Valium
What are the withdrawal symptoms of Valium (diazepam)?
Common withdrawal symptoms of Valium (diazepam) include: anxiety, insomnia, muscle tension, sensory sensitivity, depersonalization. Symptom severity varies by individual, dose, and duration of use.
How should I taper off Valium (diazepam)?
Very long half-life — often used as the target drug for benzodiazepine crossover tapers. Tablets easily split. Liquid formulation available. Preferred benzodiazepine for tapering due to long half-life and available small doses. Ashton Manual taper schedules use diazepam as the standard.
Can I stop Valium cold turkey?
Stopping Valium abruptly is not recommended. Its half-life is 20–100 hours, and the receptor adaptations built up during treatment do not reverse at that speed, so a sudden stop tends to produce the sharpest withdrawal. Prescribing guidance favours gradual, proportional reductions agreed with your prescriber.
How long does Valium stay in your system?
Valium (diazepam) has a half-life of 20–100 hours. A drug is mostly cleared after about five half-lives, so Valium is largely out of the body roughly 4 days to 3 weeks after the last dose, longer in older adults or with liver or kidney impairment. Withdrawal symptoms often begin before the drug has fully cleared and continue after it has, because the adaptations the brain made during treatment reverse more slowly than the drug leaves the blood.
Recent discussions about Valium
What members tapering Valium are asking and reporting right now. Personal experience, not medical advice.
- Valium Tapering ThreadThis is the forum for everyone tapering Valium. When you log a check-in in My Taper, it will appear here. That way you can see how others on the same medication are…Based · 8 months ago
- How do you guys do this everyday?I swear I’m sitting here on my bed rocking. This is day 28 of my first taper and I’m a freaking mess. Why? I take Fioricet for my migraines and tension. I’ve taken it…Overthis66 · 5 days ago · 28 replies
- Should I expect to feel this way all through my taper?Hi, everyone. I’ve shared I did my first taper Sept 2. My second taper failed and burned. Don’t get me wrong. I have great days. Great moments. Then I have today where I…Overthis66 · 10 days ago · 2 replies
- Last 2 days really rough.I come here and read and learn so much. I started my taper Sept 2. I tried second taper near 3 weeks later but went back to morning dose. I have great days and days like…Overthis66 · 12 days ago · 9 replies
- 2nd taper too much. Couldn’t hold. Went back to 5mg.Is anyone tapering from Valium? I’m on 10mg. Currently at 8.75 after first taper Sept 2. Started second taper Friday, but it hit hard and fast. Can any one give…Overthis66 · 16 days ago · 22 replies
Sources & References
Valium (diazepam) information on this page is sourced from peer-reviewed research, regulatory bodies, clinical guidelines, and patient-advocacy organizations.
Encyclopedic & chemical databases
Neutral, high-authority entity references.
Peer-reviewed research
Primary literature cited in this taper guide.
- Lader M 2014 — Benzodiazepine harm: how can it be reduced? (British Journal of Clinical Pharmacology)
- Ashton CH 2005 — The diagnosis and management of benzodiazepine dependence (Current Opinion in Psychiatry)
- Horowitz MA, Taylor D 2019 — Tapering of SSRI treatment to mitigate withdrawal symptoms (hyperbolic taper) (The Lancet Psychiatry)
Clinical guidelines
Evidence-based deprescribing and prescribing standards.
Deprescribing-specific resources
Clinician-facing references on tapering protocols.
- Ashton Manual (Prof. C. Heather Ashton) — Definitive clinical reference on benzodiazepine taper protocols
- British National Formulary (BNF) — UK formulary guidance on benzodiazepine prescribing
- Deprescribing.org — benzodiazepine algorithm — Evidence-based benzodiazepine deprescribing algorithm
Patient-advocacy & lived-experience
Long-running communities documenting withdrawal experience.
- BenzoBuddies — peer support forum — Largest peer-support community for benzodiazepine taper and withdrawal
- Benzodiazepine Information Coalition — Non-profit education on benzodiazepine dependence and withdrawal
- Inner Compass Initiative — Withdrawal Project — Peer-led psychiatric drug withdrawal resources
- Surviving Antidepressants — benzo & sleep med forum — Community archive of benzodiazepine taper experiences
TaperCommunity does not provide medical advice. Always consult a qualified prescriber before adjusting psychiatric medication.