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Alcohol Withdrawal: Symptoms, Timeline and When It Becomes Dangerous
October 18, 2026
Clinically reviewed by Adjunct Professor Dr Prem Kumar Shanmugam, founder of Solace Asia. October 2026.
Quick answer
Alcohol withdrawal usually starts 6 to 24 hours after the last drink, is at its worst between day 1 and day 3, and settles within about a week. Most people get shaky, sweaty, anxious and sleepless. A smaller number develop seizures or delirium tremens, which can be life-threatening. Anyone who has been drinking heavily every day should stop with medical support rather than alone at home. If someone has a seizure, is confused or is seeing things that are not there, call 999 straight away.
Why withdrawal happens
Alcohol slows the brain down. When someone drinks heavily for weeks or months, the brain adjusts by running “faster” to keep things balanced. If the alcohol suddenly stops, the brain is left over-active. That is what causes the shaking, racing heart, anxiety and, in severe cases, seizures. The longer and heavier the drinking, and the more times someone has been through withdrawal before, the worse it tends to be.
About half of people who are dependent on alcohol get withdrawal symptoms when they cut down or stop (Schuckit, New England Journal of Medicine, 2014).
The alcohol withdrawal timeline
| Time since last drink | What often happens |
|---|---|
| 6 to 24 hours | Shaky hands, sweating, nausea, headache, anxiety, poor sleep, cravings. |
| 12 to 48 hours | Some people see, hear or feel things that are not there while still knowing where they are. Seizures are most likely in this window. |
| 24 to 72 hours | Symptoms are usually at their peak. |
| 48 to 72 hours and beyond | A small number develop delirium tremens: severe confusion, fever, a racing heart and hallucinations. This is a medical emergency. |
| Day 5 to 7 | Most physical symptoms ease. Poor sleep, low mood and cravings can last for weeks. |
Every person is different, so these times are a guide. Around 3 to 5 in every 100 people going through withdrawal have a seizure, and a similar share develop delirium tremens. Both are far less likely when withdrawal is managed by a medical team.
Signs that withdrawal is becoming dangerous
- A seizure (fit), even a short one
- Confusion, not knowing where they are or who people are
- Seeing, hearing or feeling things that are not there, with fear or agitation
- High fever, heavy sweating and a very fast heartbeat
- Repeated vomiting, or being unable to keep fluids down
If you see any of these, call 999 or go to the nearest emergency department. Do not try to manage it at home, and do not give more alcohol or someone else’s sleeping pills to “calm them down”.
Who should not stop drinking alone
Stopping suddenly is risky for anyone who:
- drinks heavily every day, or needs a drink in the morning to stop the shakes
- has had withdrawal symptoms, a seizure or delirium tremens before
- also takes sleeping pills or other sedatives
- has liver, heart or other serious health problems, or is older
For these people, the safest way to stop is a planned medical detox.
How medical detox helps
In a medical detox, doctors and nurses check symptoms several times a day and give medicines that calm the over-active brain and prevent seizures. Vitamin B1 (thiamine) is usually given too, because heavy drinking drains it and a lack of it can cause lasting memory problems such as Wernicke-Korsakoff syndrome. Fluids, food and sleep are put back on track.
At Solace Asia, detox takes place in a private medical unit with doctors and psychiatric care around the clock, and usually lasts 3 to 5 days. Detox is only the first step. Clients then move into Solace Prime, our 28-day residential programme, to work on the reasons behind the drinking, followed by 18 months of aftercare.
After the first week
Poor sleep, low mood, irritability and cravings can continue for weeks or months after the physical symptoms stop. This is sometimes called post-acute withdrawal, and it is one of the main reasons people start drinking again. Ongoing therapy, support groups and a clear plan for the first months make relapse much less likely.
Frequently asked questions
How long does alcohol withdrawal last?
Physical symptoms usually last about a week and are worst on days 1 to 3. Poor sleep, low mood and cravings can carry on for several weeks.
Can alcohol withdrawal be fatal?
Severe withdrawal, including seizures and delirium tremens, can be life-threatening, especially without treatment. Medical detox greatly lowers the risk.
Is it safe to stop drinking at home?
For people who drink lightly, usually yes. Anyone who drinks heavily every day, has had withdrawal symptoms before or takes sedatives should stop with medical supervision.
How long is alcohol detox at Solace Asia?
Usually 3 to 5 days in our medical unit, followed by Solace Prime, our 28-day residential programme.
Can I cut down slowly on my own instead?
Cutting down without a plan is hard to stick to and can still trigger withdrawal. Speak to a doctor or contact the Solace Asia team first for advice.
Talk to us
If you or someone you love wants to stop drinking, contact the Solace Asia team for a free, confidential consultation. We can tell you whether a medical detox is needed and arrange admission quickly. If cost is a concern, our sister retreat Salus offers residential treatment at a lower cost, in a different residential location, maintaining Solace’s clinical standards for treatment.
Sources: Schuckit MA, “Recognition and management of withdrawal delirium (delirium tremens)”, New England Journal of Medicine, 2014; National Institute for Health and Care Excellence, Alcohol-use disorders: diagnosis and management of physical complications (CG100), 2010.
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