When to Get Medical Help for Alcohol Withdrawal: Danger Signs

Get emergency help straight away if someone in alcohol withdrawal has a seizure, becomes confused, sees or hears things that aren't there, runs a fever or has an irregular heartbeat. If you have milder withdrawal symptoms, such as shaking, sweating, nausea or a racing pulse, contact a doctor the same day. And if you drink heavily every day, talk to a doctor before you stop, not after.

Alcohol withdrawal usually starts 6 to 12 hours after the last drink and, for most people, lasts 3 to 7 days, according to the NHS. MedlinePlus, the US National Library of Medicine's site, says symptoms usually peak between 24 and 72 hours. A review published by the US National Institute on Alcohol Abuse and Alcoholism (NIAAA) puts serious withdrawal at about 10% of patients, notes that seizures can affect more than 5% of people who go untreated, and found that more than 90% of withdrawal seizures happen within 48 hours of stopping. Delirium tremens (DTs), the most severe form, develops 1 to 4 days after withdrawal begins, and about 5% of people who develop DTs die from them.

Can alcohol withdrawal kill you?

Yes, it can. Long, heavy drinking makes the brain adjust to alcohol's calming effect, so when the alcohol stops suddenly, the brain swings into overdrive. For most people that means a few rough days of shaking, sweating, poor sleep and anxiety. For a minority it means seizures, hallucinations or DTs.

When people with DTs die, it's from heart and metabolic complications, injuries or infections. The good news is in the same literature: an evidence review of 9 controlled trials, done for the American Society of Addiction Medicine, reported no deaths among 217 patients with withdrawal delirium who were treated with appropriate sedative medicines. Severe withdrawal is far safer in medical hands than alone at home.

Danger signs: when to call emergency services

MedlinePlus is plain about this: go to the emergency room or call your local emergency number if any of these happen during withdrawal.

• A seizure (a fit, jerking, collapse or blackout)
• Confusion or delirium: not knowing where they are, what day it is, or who people are
• Hallucinations: seeing, hearing or feeling things that aren't there
• A fever or high temperature
• An irregular heartbeat

Add the signs that are an emergency in anyone: chest pain, trouble breathing, or being very drowsy and hard to wake.

Don't wait to see whether a seizure was "just one". In a separate NIAAA review, when a second convulsion happens it usually comes within 6 hours of the first. Withdrawal seizures can also arrive within the first 1 or 2 days without much warning, even when other withdrawal symptoms are mild, and a first withdrawal can bring one, though the risk rises after several. If you're unsure whether something counts, treat it as an emergency.

When to see a doctor the same day

MedlinePlus describes alcohol withdrawal as a serious condition that can quickly become life threatening, and advises contacting a healthcare provider right away if you think you're in it. So any of these symptoms after cutting down or stopping means a call to a doctor, an urgent care clinic or a nurse advice line today:

• Shaky hands or body (more on the alcohol shakes and how long they last)
• Sweating or clamminess, especially at night
• Nausea or vomiting, and above all being unable to keep water down
• A pounding or fast heartbeat (see heart palpitations after quitting)
• Anxiety, restlessness, irritability or being unable to sleep

These usually mean mild to moderate withdrawal. The NHS advises that if you get withdrawal symptoms, you should get medical help before you try to stop drinking. A doctor can assess you and, where needed, prescribe sedative medicines, the treatment an ASAM evidence review links to fewer deaths from withdrawal delirium. The detailed list of what each symptom feels like is in our guide to alcohol withdrawal symptoms.

Same-day help becomes "go now" when symptoms meet a risk factor from the section below. Someone who had a withdrawal seizure last time and is shaking again 12 hours after their last drink shouldn't wait for an appointment.

The withdrawal timeline: when the danger peaks

Time since last drink	What usually happens	What to watch for
6 to 12 hours	Early symptoms begin: tremor, sweating, anxiety, nausea	Symptoms appearing at all is the cue to call a doctor
12 to 48 hours	Symptoms build, usually peaking between 24 and 72 hours	Seizures: more than 90% happen within 48 hours
12 hours to 7 days	Hallucinations affect 3% to 10% of people in severe withdrawal	Seeing or hearing things is an emergency sign
About day 2 to day 5	DTs, if they come, begin 1 to 4 days after withdrawal starts	New confusion, fever, racing heart, agitation
Day 3 to day 7	Most acute symptoms settle	Under 3% of seizures come 5 to 20 days later

The day 2 to 5 row is our arithmetic, not a published figure: symptoms start around 6 to 12 hours after the last drink, and DTs follow 1 to 4 days after that start.

DTs come later than many people expect, often on day 2 to day 5, when the worst seems to be over. Someone who seemed to cope on day 1 and is confused on day 3 needs help immediately.

Who is at higher risk of severe withdrawal?

A 2014 systematic review and meta-analysis of 15 studies looked for what predicts severe withdrawal. The clearest predictor was history: people who'd had DTs before had about 2.6 times the odds of DTs again, and a previous withdrawal seizure carried about 2.8 times the odds of another seizure.

Other risk factors:

• Repeated withdrawals. People who've been through withdrawal many times have a higher risk of seizures than people going through it for the first time. Researchers call this pattern kindling: each episode can prime the brain for a worse next one.
• Age 60 and over. In a study of 284 inpatients, people aged 60 and older had 4.7 times the odds of delirium during withdrawal, even though their symptom scores looked similar to younger patients'.
• Heavy daily drinking over years. DTs mainly affect people who have been drinking heavily for years.
• Other illness and medicines. A NIAAA review on withdrawal management says hospital is the right setting when withdrawal is severe or comes with other medical, surgical or psychiatric conditions that need hospital care. Heart or liver disease, pregnancy, and taking sleeping pills or other sedatives are all reasons to have a doctor plan the withdrawal rather than doing it alone.

One risk is easy to miss: an unplanned stop. A NIAAA review notes that DTs often appear in heavy drinkers whose drinking is cut off by a hospital admission for something else. If you're admitted for surgery or an injury, tell the staff how much you drink, even if it feels awkward.

Is it safe to stop drinking cold turkey at home?

For someone who drinks lightly or now and then, stopping is usually uneventful. If you're dependent on alcohol, the NHS warns that stopping suddenly can be very dangerous. Our position is the same: if you drink heavily every day, don't quit cold turkey without medical guidance.

That doesn't mean everyone needs a hospital bed. The same NIAAA review explains that mild to moderate withdrawal without complicating illness can often be treated outside hospital. A doctor decides which you need, so talk before your last drink.

Cutting down gradually is still best planned with a professional (our guide on how to taper off alcohol safely explains why). Before you stop, it helps to:

1. Book a GP or doctor appointment and say plainly how much you drink.
2. Arrange for someone to stay with you or check in for the first few days.
3. Keep the first 48 hours free of driving and of anything you can't cancel.
4. Know your emergency number and where the nearest emergency department is.

What to do if someone you're with is in withdrawal

If you're the partner, friend or family member, you may be the one who spots the danger, because confusion is hard to notice from the inside.

If emergency signs appear, call your local emergency number. In the US and Canada that's 911, in the UK 999, across the EU 112, and in Australia 000. While you wait:

• Stay with them. Don't leave a confused or drowsy person alone.
• During a seizure, move hard objects away, cushion their head, and don't put anything in their mouth. Once it stops, turn them on their side.
• Don't give them alcohol to calm them down, and don't give them anyone else's sedatives or sleeping pills.
• Note the facts responders will ask for: how much they usually drink, when they had their last drink, any past seizures or DTs, and any medicines they take.

Getting through acute withdrawal is only the start. Poor sleep and low mood can linger for weeks (see PAWS), and if a drink happens along the way, read what to do after a relapse before blaming yourself.

Check the red flags

Tick what's happening and which risk factors apply, then slide to the hours since the last drink. It's an educational guide built on the sources below, not a diagnosis: if it says to call, call.

Frequently asked questions

Can you die from alcohol withdrawal?

Yes. Severe withdrawal can cause seizures and delirium tremens, and about 5% of people who develop DTs die from complications such as heart problems, infections or injuries. With proper medical treatment the risk drops sharply. That's why heavy daily drinkers should get medical advice before stopping, and why emergency signs need an ambulance, not patience.

How do I know if my withdrawal is serious?

Seizures, confusion, hallucinations, fever, an irregular heartbeat, chest pain or trouble breathing are emergencies. Shaking, sweating, vomiting, anxiety or a fast pulse are milder but still mean seeing a doctor today. A past withdrawal seizure or DTs, being 60 or older, or other illness all raise the stakes.

When do alcohol withdrawal seizures happen?

Most come early. More than 90% of withdrawal seizures happen within 48 hours of the last drink, and they can arrive with little warning, even when other symptoms are mild. A small share, under 3%, happen 5 to 20 days later. Any seizure during withdrawal needs emergency care, even if the person seems fine afterwards.

When do delirium tremens start?

DTs usually begin 1 to 4 days after withdrawal symptoms start, so often around day 2 to day 5 after the last drink, and they can last up to 3 or 4 days. They're often preceded by sweating, tremor and a racing heart. New confusion or hallucinations in this window means calling emergency services immediately.

Should I go to the ER for alcohol withdrawal?

Go to the emergency department or call your emergency number for any danger sign: a seizure, confusion, hallucinations, fever, an irregular heartbeat, chest pain or trouble breathing. For milder symptoms, a same-day doctor or urgent care visit is right, but go to the ER if you can't reach one quickly or you have high-risk history.

The takeaway

Alcohol withdrawal is one of the few times when stopping drinking needs a plan. Talk to a doctor before you quit if you drink heavily every day, see someone the same day if symptoms start, and call emergency services for a seizure, confusion, hallucinations, fever or an irregular heartbeat. When in doubt, call.

Once you're safely through, Sober Tracker: Go Alcohol Free can help with the longer stretch. It counts your sober days, and every sober day adds a star to your Recovery Sky. The Coping Toolkit puts an urge-surfing timer, breathing and grounding exercises one tap away during a craving, and Reflect holds daily mood check-ins. Sober Tracker is a habit tool, not medical care: it doesn't monitor withdrawal or replace a doctor.

Everything stays on your device, with no account or sign-up. Download it free on the App Store or Google Play.

This article is for education and is not medical advice. It doesn't replace a doctor's assessment, and severe symptoms need medical help immediately.

Sources

• MedlinePlus, US National Library of Medicine: Alcohol withdrawal
• NHS: Alcohol misuse
• Saitz R. Introduction to alcohol withdrawal, Alcohol Health and Research World (NIAAA), 1998
• Trevisan LA, Boutros N, Petrakis IL, Krystal JH. Complications of alcohol withdrawal: pathophysiological insights, Alcohol Health and Research World (NIAAA), 1998
• Goodson CM, Clark BJ, Douglas IS. Predictors of severe alcohol withdrawal syndrome: a systematic review and meta-analysis, Alcoholism: Clinical and Experimental Research, 2014
• Kraemer KL, Mayo-Smith MF, Calkins DR. Impact of age on the severity, course, and complications of alcohol withdrawal, Archives of Internal Medicine, 1997
• Mayo-Smith MF et al. Management of alcohol withdrawal delirium: an evidence-based practice guideline, Archives of Internal Medicine, 2004