What happens in the body when heavy drinking suddenly stops, how withdrawal unfolds hour by hour, which signs mean emergency, what treatment looks like in hospital and in outpatient care, and what families should do, and avoid, in the first days.
In this article 15
- "He stopped drinking on Sunday. By Tuesday night he was seeing things."
- Hour by hour, the danger changes
- What the body and mind go through
- Who is at higher risk?
- The CIWA-Ar: a score, not a guess
- What a score cannot tell you
- What medical care looks like in practice
- Thiamine and nutrition: the easy protection
- What families can do, and what to avoid
- Recovery does not end on day five
- Medicines that reduce drinking
- Bring this to the first appointment
- Frequently Asked Questions
- References
- About this article
Start here
"He stopped drinking on Sunday. By Tuesday night he was seeing things."
Ramesh was forty-seven, a daily drinker for more than twenty years. After a family quarrel he decided, on his own, to "stop completely" and stopped at once. For the first night he was restless and could not sleep. By the next morning his hands were shaking so badly he could not hold a cup. That evening he told his wife there were people in the corner of the room. Two days later he had a convulsion and was rushed to hospital, where doctors found dehydration, low blood sugar and a dangerously fast heart rate. He recovered, but the admission could have been avoided if he had been medically supervised from the start.
Composite illustration · for education only · not a real person
Details are blended and altered so that no individual can be identified.
The safety message, before anything else
- Heavy daily drinkers should not stop suddenly at home without medical advice. Withdrawal can cause seizures and delirium tremens, which can be fatal.
- Do not "treat" withdrawal by drinking more, by taking sedative tablets bought without a prescription, or by using untested remedies.
- Call 112 or 108 right away for a seizure, confusion, hallucinations, fever, chest pain, vomiting blood, or inability to stay awake.
Alcohol withdrawal is the body's rebound after the brain has adapted to regular alcohol. When intake falls suddenly, the brain's calming systems are underactive and its excitatory systems are overactive. That mismatch causes the familiar symptoms, and in severe cases, seizures and delirium.5 The good news is that the process is well understood, its timeline is predictable, and most people who receive proper care recover without lasting harm.
The timeline
Hour by hour, the danger changes
Timings are approximate and vary with how much and how long a person has drunk, age, health, other substances, and whether earlier withdrawal has happened. The pattern is consistent enough to plan for.2
~6 h · minor withdrawal~24 h · hallucinosis possible~48 h · seizures usually by now~96 h · DTs, if not treated
last drinkday four
- 6 to 12 hoursMinor withdrawal
Tremor, especially of the hands; sweating, nausea; insomnia, anxiety; fast pulse, raised blood pressure.
- 12 to 24 hoursHallucinosis
Hearing or seeing things; orientation usually intact; fear and agitation. It can be mistaken for psychosis.
- 12 to 48 hoursWithdrawal seizures
Generalised convulsions, often a single episode. They can cause injury and aspiration. Multiple fits are an emergency.
- 48 to 96 hoursDelirium tremens
Confusion, disorientation; severe autonomic overactivity; vivid hallucinations. A medical emergency needing ICU-level care.
Symptoms by system
What the body and mind go through
| System | Typical signs | Why it matters |
|---|---|---|
| Nervous system | Tremor, seizures, restlessness, startle, poor coordination | Seizures can cause falls, head injury and breathing problems |
| Heart and blood vessels | Fast pulse, raised blood pressure, palpitations, sweating | Strain on the heart; sudden changes can be dangerous in those with heart disease |
| Mind | Anxiety, irritability, insomnia, nightmares, poor concentration | Can be mistaken for a new psychiatric illness; often improves as withdrawal settles |
| Perception and thinking | Hallucinations, confusion, disorientation, fixed fears | Confusion is a warning sign of delirium, not an ordinary symptom |
| Gut and fluids | Nausea, vomiting, poor appetite, sweating, dehydration | Dehydration and low potassium or magnesium make withdrawal worse |
| Metabolism | Low blood sugar, low thiamine (vitamin B1) | Thiamine deficiency can lead to a serious brain condition called Wernicke's encephalopathy |
Who is at higher risk?
How severity is judged
The CIWA-Ar: a score, not a guess
In hospitals, withdrawal severity is often measured with the Clinical Institute Withdrawal Assessment for Alcohol, revised (CIWA-Ar).1 It is a short structured checklist of around ten items, including tremor, sweating, anxiety, nausea, agitation, orientation and hallucinations. The total guides how intensively a patient is monitored and treated. It is used repeatedly, because scores change over hours.
Low: monitoring, supportive care, fluids and nutritionModerate (commonly 10 to 18): symptom-guided treatment is usually consideredHigh (commonly above 18 to 20): high risk of seizures or delirium; closer careSevere (very high scores, delirium or seizures): hospital, often intensive care
lower scorehigher score
What a score cannot tell you
A low score does not rule out danger. Someone with a history of seizures may be at risk even when they feel reasonably well, and a score can be misleading in a person who is confused, drowsy or unable to cooperate. Good care combines the score with observation, vital signs, blood tests, and the person's history.
Blood tests usually checked
Blood sugar, electrolytes (sodium, potassium, magnesium), liver function, blood count, kidney function, and clotting, as indicated.
Also assessed
Head injury, infection, pregnancy, other substances, mental health history, and suicidal thoughts.
Treatment
What medical care looks like in practice
Modern management is symptom-guided and supportive. The aims are to prevent seizures and delirium, keep the person safe, correct fluid and electrolyte problems, and treat the medical conditions that complicate withdrawal.2 The main medicines used are benzodiazepines, which calm the overactive nervous system; other agents, such as carbamazepine, gabapentin, or certain alpha-2 agonists, are used in selected situations or as adjuncts. Choice, dose and duration are decisions for the treating team, and they should never be copied from an internet protocol.
SettingHospital or ICU
- Seizures, delirium, or confusion
- Very high severity scores
- Other serious illness
- No safe home supervision
SettingDay care or outpatient
- Mild to moderate withdrawal
- Low seizure risk
- Reliable supervision at home
- Regular medical review
SettingAfter the acute phase
- Relapse prevention medicines
- Counselling and CBT
- Family sessions
- Mutual-help groups
At the clinic, care starts with an assessment in the de-addiction clinic in Patna, which decides the safe setting. Where withdrawal is mild to moderate and home supervision is reliable, day-care de-addiction with daily medical review may be suitable; seizures, delirium or serious illness need hospital care.
Thiamine and nutrition: the easy protection
Heavy drinkers often have low thiamine (vitamin B1) and poor nutrition. Thiamine is usually given early in care, before glucose is administered, to reduce the risk of Wernicke's encephalopathy: a serious brain condition causing confusion, unsteady gait and eye movement problems.4 Fluids, potassium and magnesium are corrected as needed, and regular meals are encouraged as appetite returns.
In the first days
What families can do, and what to avoid
Do
- Take the person to a doctor or hospital before stopping, if they drink heavily every day
- Keep them company in a calm, quiet, well-lit room
- Offer water or oral rehydration if they are awake and able to swallow safely
- Note the time of the last drink, the amount, and any other substances
- Bring all medicines and any bottles of drink to show the doctor
- Call 112 or 108 at once for a fit, confusion or breathing problems
Avoid
- Letting them "sleep it off" alone, or leaving them unattended
- Giving more alcohol to "steady" them
- Giving sedative tablets, sleeping tablets or home remedies without medical advice
- Restraining them forcibly, unless a medical team directs it for safety
- Putting anything in the mouth during a fit, or forcing them to drink during a fit
- Arguing about hallucinations; calmly reassure instead
During a seizure
Keep the person from injury: move hard objects away, cushion the head, and turn them on their side once the convulsion stops. Time it. Do not hold the tongue or put objects in the mouth. Call 112 if it lasts more than five minutes, or if a second fit follows without recovery.
After the acute phase
Recovery does not end on day five
Most physical withdrawal settles within about a week. Some people, however, experience a longer period of symptoms known as post-acute withdrawal: sleep disturbance, low mood, anxiety, irritability, poor concentration, and cravings, which can last weeks or months. Knowing this in advance helps families and patients recognise that these symptoms are part of the recovery process, and that they respond to care.
Week 1 to 2Stabilise
- Regular meals and fluids
- Sleep routine
- Medical review
Weeks 2 to 8Rebuild
- CBT and relapse prevention
- Medicines to reduce cravings, where suitable
- Family sessions
MonthsSustain
- Regular follow-up
- Mutual-help groups
- Plan for high-risk times
What happens in the rebuilding phase is explained in our guide to CBT and how it works, and the wider picture of substance use, family help and the stages of change is covered in de-addiction: meaning, types and treatment.
Medicines that reduce drinking
Several medicines are used to reduce the risk of return to drinking, including naltrexone, acamprosate, and in selected cases disulfiram. A 2014 review in JAMA of more than 120 trials found that anti-craving medicines reduce return to heavy drinking.3 They must be prescribed and monitored by a doctor, who will check liver function and other factors. Anyone who takes alcohol while on certain medicines can suffer serious reactions. How these choices are made is described in how psychiatrists in India decide which medicine to prescribe.
Relapse is common, and it is not the end
Many people return to drinking during recovery. What matters is how quickly the person returns to care, and how the plan is adjusted. A slip after a break can be more dangerous, because tolerance drops; a return to drinking should prompt medical advice, not a reckless return to the old amount.
Before your appointment
Bring this to the first appointment
- Amount and type of drink, and how long you have drunk daily
- Time of the last drink, and any other substances taken
- Any past withdrawal fits, confusion or hospital stays
- All medicines, sleeping tablets and herbal products
- Liver disease, heart problems, diabetes, pregnancy
- Thoughts of harming yourself or others
If you are unsure what to expect, read about your first visit to a psychiatrist, or book a de-addiction consultation in Patna. In an emergency, do not wait for an appointment: call 112 or 108.
Your questions
Frequently Asked Questions
How long does alcohol withdrawal last?
Physical symptoms usually settle within about a week, but the most dangerous period is roughly the first two to four days. Some people have longer-lasting symptoms of anxiety, poor sleep and cravings.
Can I stop drinking at home?
If you drink heavily every day, do not stop suddenly without medical advice. Seizures and delirium can occur. A doctor can assess whether home or hospital care is safe for you.
What are the first signs of withdrawal?
Tremor, sweating, rapid heartbeat, nausea, anxiety and poor sleep, usually starting within six to twelve hours after the last drink. These signs should be taken seriously in a heavy drinker.
What is delirium tremens?
A severe, potentially fatal form of withdrawal, usually starting 48 to 96 hours after the last drink. It involves confusion, fluctuating awareness, vivid hallucinations, and marked autonomic overactivity, and needs urgent medical care.
Are seizures common?
They can occur in people who drink heavily, particularly after previous withdrawal. Any seizure during withdrawal is a medical emergency.
Is a drink or a tablet a safe way to "calm" withdrawal?
No. Drinking more prolongs the cycle. Non-prescribed sedatives can cause dangerous interactions, and dependence on them can follow. Treatment should be prescribed and supervised.
Do I need a psychiatrist or a physician?
Often both. Withdrawal is medically managed by a physician or hospital team; the underlying alcohol use disorder, anxiety, depression and relationships benefit from psychiatric and psychological care.
Can I go back to drinking "moderately"?
For people with dependence, stopping completely is usually the safest long-term goal. For milder problems, a reduction plan agreed with a doctor can be an option. Any plan should be discussed honestly and reviewed.
References
The studies and guidance named in the text, in order of first mention in the original edition.
- Sullivan JT, Sykora K, Schneiderman J, Naranjo CA, Sellers EM. Assessment of alcohol withdrawal: the revised Clinical Institute Withdrawal Assessment for Alcohol scale (CIWA-Ar). British Journal of Addiction. 1989;84(11):1353-1357.
- American Society of Addiction Medicine. Clinical Practice Guideline on Alcohol Withdrawal Management. Rockville, MD: ASAM; 2020.
- Jonas DE, Amick HR, Feltner C, et al. Pharmacotherapy for adults with alcohol use disorders in outpatient settings: a systematic review and meta-analysis. JAMA. 2014;311(18):1889-1900.
- National Institute for Health and Care Excellence. Alcohol-use disorders: diagnosis, assessment and management of harmful drinking and alcohol dependence (CG115). London: NICE; 2011.
- Schuckit MA. Alcohol-use disorders. The Lancet. 2009;373(9662):492-501.
- Government of India. The Mental Healthcare Act, 2017.
About this article
Written and medically reviewed by
- MD (Psychiatry) AIIMS New Delhi
- Associate Professor & HOD, Dept. of Psychiatry, RDJM Medical College, Muzaffarpur
- Ex-Assistant Professor, PMCH Patna
- Consultant, Healthy Minds India, Patna
- Published
- 13 October 2026
- Format
- Patient guide
- Focus
- Alcohol withdrawal and safe detox
- Sources
- 6 references
- Dr. Saurabh Kumar worked for two years as a Senior Registrar at the National Drug Dependence Treatment Centre, AIIMS, and has treated people with alcohol and drug problems throughout his career.
- The CIWA-Ar was developed by Sullivan and colleagues. The timeline and risk framing draw on current clinical practice guidance and review material; dose information is intentionally omitted from this article and should be taken from the treating team's protocols.
- Ramesh's story is a composite and illustrative only. Figures are original schematic illustrations created for Healthy Minds India; timings are approximate and differ between sources.
- Written for general education. It does not replace an individual assessment by a qualified clinician and does not diagnose any condition. Diagrams are original illustrations prepared for this article.
© 2026 Healthy Minds India, Patna · Blog edition 1.0, October 2026
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For general education; not a substitute for a personal consultation. If you or someone close to you is in distress, please speak to a qualified mental health professional.
Medically reviewed by Dr. Saurabh Kumar, Consultant Neuropsychiatrist, Healthy Minds India, Patna. This article is for general education and is not a substitute for a personal consultation. To discuss your situation, book an appointment or contact the clinic.
Disclaimer: all characters and events depicted in this blog are entirely fictional. Any resemblance to actual persons, living or dead, is purely coincidental. The content is intended for informational purposes only and should not be considered medical advice. Always consult a qualified healthcare professional for medical concerns.
