Alcohol vs Benzodiazepine Withdrawal: How They Compare
Compiled from cited sources · not yet medically reviewedUpdated 8 sources
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For information only, not medical advice. Talk to a doctor before stopping or changing any medication. Medical disclaimer
⚠ Medical warning
Withdrawal from both alcohol and benzodiazepines can be life-threatening. If you drink heavily every day or take a benzodiazepine regularly, do not stop suddenly on your own. Talk to a doctor, or call SAMHSA at 1-800-662-4357 to find medically supervised detox. Call 911 for a seizure, confusion, hallucinations, or a racing heart with fever.
Quick answer
Alcohol and benzodiazepine withdrawal can look alike, and both can cause seizures and be fatal. The biggest difference is timing. Alcohol withdrawal moves fast: symptoms can start 6 to 12 hours after the last drink, seizures can happen at 24 to 48 hours, and delirium tremens (DTs) can begin at 48 to 72 hours. Benzodiazepine withdrawal depends on the drug: it may start within a day for a short-acting benzo or up to 3 weeks later for a long-acting one, and the acute phase often lasts weeks. Both can leave lingering sleep and mood problems for months.
Alcohol vs benzodiazepine withdrawal at a glance
| Alcohol | Benzodiazepines | |
|---|---|---|
| When symptoms may start | 6 to 12 hours after the last drink | Within a day (short-acting) to up to 3 weeks (long-acting) |
| Usually worst | 24 to 72 hours | During the first several weeks |
| Seizure risk | Especially 24 to 48 hours | During acute withdrawal, especially if stopped suddenly |
| Delirium | Delirium tremens can begin at 48 to 72 hours, peaking around day 5 | Severe cases: delirium, hallucinations, psychosis |
| Common symptoms | Shaking, anxiety, sweating, nausea, headache, insomnia, pounding heart | Anxiety and panic, insomnia, irritability, tremor, muscle pain, memory problems |
| Longer-term | Sleep and mood problems for weeks to months | Protracted symptoms beyond 4 to 6 weeks, sometimes up to 12 months |
| Safest way to stop | Medically supervised detox for heavy, daily drinking | A slow taper planned with a prescriber |
| Full timeline | Alcohol withdrawal timeline | Benzo withdrawal timeline |
Why they look so similar
Alcohol and benzodiazepines both act on the brain’s calming GABA system. When the body gets used to either one and it is suddenly removed, the nervous system can swing into an over-excited state: anxiety, shaking, sweating, a racing heart and, at worst, seizures and delirium. This is also why doctors often use benzodiazepines, under medical supervision, to treat alcohol withdrawal. That is a supervised medical treatment, not something to try at home.
How the timelines differ
Alcohol withdrawal is usually a matter of hours and days: most of the danger falls in the first 5 days or so. Benzodiazepine withdrawal is usually stretched over weeks, and how soon it starts depends on how quickly the specific drug leaves your body. Someone stopping a long-acting benzo may feel fine for days and then get worse, so a delayed start is not a sign of safety.
Using both together, or stopping both at once, can make withdrawal more complicated and riskier. Tell your doctor about everything you take, including alcohol.
When to get help
- Call 911 for a seizure, confusion, hallucinations, or a racing heart with fever.
- Talk to a doctor before you stop heavy daily drinking or a regular benzodiazepine. Free, confidential referrals to detox and treatment: SAMHSA 1-800-662-4357 (24/7, English and Spanish).
- If you have thoughts of suicide or self-harm, call or text 988 now.
Not sure how much you drink? Our private AUDIT alcohol self-check (the World Health Organization’s screening questionnaire) runs entirely in your browser and stores nothing. It is a screening tool, not a diagnosis.
FAQ
Which is more dangerous, alcohol or benzo withdrawal?
Both can be fatal, and you cannot tell in advance how severe your own withdrawal will be. Alcohol withdrawal tends to become dangerous faster, within the first 1 to 5 days, while benzodiazepine withdrawal risks can extend over weeks. Either way, get medical advice before stopping.
Can I use leftover benzos to get through alcohol withdrawal?
No. Doctors do use benzodiazepines for alcohol withdrawal, but they choose the drug, dose and monitoring for each person. Mixing alcohol and benzodiazepines on your own can slow your breathing dangerously. Call SAMHSA at 1-800-662-4357 or talk to a doctor about supervised detox.
Next steps
Talk to others going through it. Share your experience or ask questions on the Alcohol board in our community forum. Planning to stop? See the Tapering & Talking to Your Doctor board, and talk to a doctor before you stop. Forum posts are personal experiences, not medical advice. Please read the community guidelines.
Related timelines
- Alcohol Withdrawal Timeline: Hour by Hour, Day by Day
- Benzo Withdrawal Timeline: Short- vs Long-Acting
- Xanax vs Klonopin Withdrawal
Sources
- American Family Physician: Alcohol Withdrawal Syndrome: Outpatient Management (2021)
- VA Veterans Health Library: Understanding Alcohol Withdrawal
- MedlinePlus (U.S. National Library of Medicine): Alcohol withdrawal
- StatPearls: Withdrawal Syndromes (NCBI Bookshelf)
- FDA: FDA requiring Boxed Warning updated to improve safe use of benzodiazepine drug class
- Joint Clinical Practice Guideline on Benzodiazepine Tapering (2025, PMC12463801)
- NHS Scotland (Right Decisions): Benzodiazepines and z-drugs, discontinuation/withdrawal symptoms
- SAMHSA National Helpline
Last reviewed: October 29, 2026. Researched and written by Withdrawal Timelines from the cited sources, which are the same sources used in our individual timelines. This comparison has not yet been reviewed by a medical professional. See How We Review and our Medical Disclaimer. This is general information, not medical advice.
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