Is Alcohol Withdrawal Dangerous? Seizures, DTs and When to Get Help
Compiled from cited sources · not yet medically reviewedUpdated 4 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
Alcohol withdrawal can be life-threatening. If you drink heavily every day, don’t 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
Yes, alcohol withdrawal can be dangerous. American Family Physician says untreated or under-treated withdrawal can progress to seizures, delirium tremens (DTs) and death, and DTs carry a 5% to 10% death rate. Seizures usually happen 24 to 48 hours after the last drink, and DTs start at 48 to 72 hours. Many people have only mild symptoms, but you can’t predict this safely on your own, so talk to a doctor before you stop heavy drinking.
Alcohol withdrawal timeline at a glance
When did you last use or take it?
⚠ Medical warning (read before using this)
Alcohol withdrawal can be life-threatening. If you drink heavily every day, don’t 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.
This places the typical ranges from this article's sources on your date. It is not a prediction or a diagnosis, and being past a phase does not mean symptoms or risks are over.
A rough guide from published sources, not medical advice. Everyone is different.
| Phase | When | What you may feel | Severity | Red flags |
|---|---|---|---|---|
| Early withdrawal | 6 to 12 hours after the last drink | Shakiness (tremor); Anxiety; Sweating; Headache; Upset stomach, loss of appetite; Trouble sleeping; Pounding heart (palpitations) | Moderate | Symptoms getting worse quickly |
| Hallucinosis | 12 to 24 hours | Seeing, hearing or feeling things that aren’t there (usually clears within 48 hours) | Severe | Any hallucinations: get medical help now |
| Seizure risk | 24 to 48 hours (reported as early as 2 hours) | Withdrawal seizures (generalized tonic-clonic) | Can be life-threatening | A seizure, confusion, or seeing or hearing things that aren’t there: call 911 |
| Delirium tremens (DTs) | 48 to 72 hours, peaking around day 5 | Severe confusion and disorientation; Agitation; Hallucinations, mostly visual; Sweating, fever, fast heart rate, high blood pressure | Can be life-threatening | Confusion, fever, racing heart or hallucinations: call 911 |
| Lingering symptoms | After the first week | Some symptoms such as sleep problems, anxiety and low mood can go on for weeks | Moderate | Thoughts of suicide or self-harm: call or text 988 now |
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Symptoms, phase by phase
Alcohol withdrawal happens because the brain adapts to heavy drinking, and stopping suddenly leaves the nervous system overactive. MedlinePlus lists common symptoms including anxiety, depression, fatigue, irritability, shakiness, mood swings, nightmares and not thinking clearly, plus sweating, headache, insomnia, nausea, rapid heart rate and tremor. Delirium tremens, the severe form, can cause sudden severe confusion, fever, hallucinations and seizures.
Early withdrawal: 6 to 12 hours after the last drink
- Shakiness (tremor)
- Anxiety
- Sweating
- Headache
- Upset stomach, loss of appetite
- Trouble sleeping
- Pounding heart (palpitations)
Hallucinosis: 12 to 24 hours
- Seeing, hearing or feeling things that aren’t there (usually clears within 48 hours)
Seizure risk: 24 to 48 hours (reported as early as 2 hours)
- Withdrawal seizures (generalized tonic-clonic)
Delirium tremens (DTs): 48 to 72 hours, peaking around day 5
- Severe confusion and disorientation
- Agitation
- Hallucinations, mostly visual
- Sweating, fever, fast heart rate, high blood pressure
Lingering symptoms: After the first week
- Some symptoms such as sleep problems, anxiety and low mood can go on for weeks
What makes withdrawal longer or shorter
- History of withdrawal seizures or DTs
- Multiple previous withdrawals
- Other illnesses
- Age older than 65
- Long duration of heavy drinking
- Seizures during the current withdrawal
- A very fast heart rate, sweating or high blood pressure early on
- Dependence on other sedatives, such as benzodiazepines. AAFP lists all of these as factors that raise the risk of severe or complicated withdrawal.
When to see a doctor or get help now
- Before you stop, if you drink heavily every day. A doctor can decide whether outpatient or inpatient detox is safe for you.
- Call 911 for a seizure, confusion, hallucinations, fever, or a racing heart.
- If you have any of the risk factors above, plan for medically supervised withdrawal.
Not sure where to start? Call SAMHSA’s free, confidential helpline at 1-800-662-4357, 24/7. See Get Help.
Tapering
Medically supervised withdrawal is the safe route. AAFP says people with mild to moderate symptoms and no extra risk factors can often be treated as outpatients, while others need a hospital or detox unit. Benzodiazepines are first-line treatment for moderate to severe symptoms. Don’t design your own home taper; call SAMHSA at 1-800-662-4357 for referrals.
Tips for getting through it
- Tell a doctor honestly how much and how long you’ve been drinking
- Don’t stop heavy drinking alone; have someone with you
- Know the danger window: days 1 to 5
- Ask about medicines for alcohol use disorder after detox to help you stay stopped
- Read our day 3 guide and full alcohol withdrawal timeline
Frequently asked questions
Can alcohol withdrawal kill you?
Yes. AAFP says untreated withdrawal can progress to seizures, delirium tremens and death, and DTs have a 5% to 10% mortality rate. AAFP says the goals of treatment include preventing seizures and stopping withdrawal from progressing to delirium tremens.
When are alcohol withdrawal seizures most likely?
Usually 24 to 48 hours after the last drink, though they have been reported as early as 2 hours.
Can I detox from alcohol at home?
Some people with mild symptoms and no risk factors can be treated as outpatients, but that should be decided and monitored by a doctor.
Does everyone who stops drinking get DTs?
No. Many people have mild symptoms only. But you can’t reliably predict who will get severe withdrawal on your own, which is why medical advice matters.
Next steps
- Track your dayEnter when you stopped to see where you are on the timeline
- Combine timelinesAdd other things you are stopping and see them on one chart
- Talk to othersAsk questions on our community forum (peer support, not medical advice)
- Read nextAlcohol Withdrawal Timeline: Hour by Hour, Day by Day
- Get helpFree, confidential helplines and when to see a doctor
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
- Alcohol Withdrawal Day 3: What's Normal and What's an Emergency
- Benzo Withdrawal Timeline: Short- vs Long-Acting
Sources
- American Family Physician: Alcohol Withdrawal Syndrome: Outpatient Management (2021)
- MedlinePlus (U.S. National Library of Medicine): Alcohol withdrawal
- VA Veterans Health Library: Understanding Alcohol Withdrawal
- SAMHSA National Helpline
Last reviewed: October 25, 2026. Researched and written by Withdrawal Timelines from the cited sources. This article 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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