Alcohol Withdrawal Syndrome: Symptoms and Treatment

What is withdrawal syndrome and how is it different from a hangover?

A hangover is the body’s one-off reaction to too much alcohol: a headache, nausea, thirst, and it all passes within a day. Withdrawal syndrome occurs in people whose addiction is already established. The brain and nervous system have adapted to the constant presence of alcohol, and when the next drink does not come, the balance of neurotransmitters is disrupted. This is no longer just “feeling unwell.”

It develops not after one wild night but after prolonged drinking: a binge lasting several days, or regular heavy drinking for months or years. If a person drank once and feels wrecked the next day, it is most likely an ordinary hangover. But if this happens every time they try to go even a day without drinking, it is a sign of established addiction.

How soon does withdrawal syndrome start, and how long does it last?

According to the Ministry of Health of Ukraine’s standard of care, alcohol withdrawal usually starts 6–24 hours after the last drink, peaks on days 2–3 and in most cases resolves within a week. Poor sleep, mood swings and cravings for alcohol may last for several more weeks.

Serious complications have their own timelines, and it is important not to confuse them:

In other words, seizures are an early complication that can happen on the first day, when the person feels the worst is over. Delirium develops later. In older people and those with memory and thinking problems, seizures may be accompanied by delirium.

What happens in the body during a binge and how the condition changes in the first days after it is described in the article “Coming Off a Binge: What Happens to the Body During Alcohol Withdrawal”.

What are the symptoms of alcohol withdrawal syndrome?

The symptoms depend on how severe the condition is. The longer the history of drinking and the larger the daily amount of alcohol, the more severe withdrawal usually is.

The condition can get worse quickly, within a few hours, especially if the person has already had seizures or delirium during previous withdrawal episodes. That is why doctors advise medical supervision even when symptoms seem moderate.

Why are seizures and alcohol delirium dangerous?

Alcohol delirium, known as “delirium tremens” or “the DTs,” is an emergency. The person loses their sense of time and place, sees or hears things that are not there, may behave aggressively or be terrified of an imaginary threat. This is often accompanied by blood pressure spikes, fever and dehydration.

Withdrawal seizures are a separate complication: a generalized seizure with loss of consciousness. It may recur within a few hours, and a person who has already had such seizures is at higher risk of them recurring in future withdrawal episodes.

Without medical care, delirium and seizures are life-threatening. If seizures, hallucinations or delusions appear after stopping drinking, or the person no longer recognizes family members, call the 24/7 hotline or an ambulance immediately instead of waiting for it to “pass on its own.”

Can withdrawal be managed at home?

Some people can be safely managed at home, provided that withdrawal is not expected to be severe, there is no alcohol in the house and someone is nearby to support them in the first days. But without an examination it is impossible to predict whose withdrawal will stay mild and whose will lead to seizures or turn into delirium within a few hours. Relevant factors include how long the person has been drinking, the condition of the liver and heart, age, other illnesses and severe withdrawal episodes in the past.

That is why trying to “treat” it yourself with home remedies or random medications not prescribed by a doctor is risky. It is safer to have a specialist assess the condition and decide where withdrawal treatment should take place: at home under a doctor’s supervision or in an inpatient unit.

How a home visit by an addiction doctor differs from care in a clinic, and what signs the doctor uses to choose the format, is explained in the article “Alcohol Withdrawal at Home or in a Clinic: Which Is Safer?”.

How does a doctor treat withdrawal syndrome?

First the doctor examines the person: blood pressure, pulse, temperature, signs of complications, length and pattern of drinking. Based on this, they decide whether monitoring and an IV drip at home are enough or whether inpatient treatment is needed. Under the Ministry of Health standard, complications — seizures, hallucinations, delirium — are treated in an inpatient setting.

The goal of the medical part is to remove the physical danger, normalize blood pressure and heart rhythm, correct dehydration, and prevent seizures and delirium. Once the acute phase is over, work on the reasons for drinking can begin; otherwise the risk of relapse remains high. The next steps are described on the alcohol addiction rehabilitation page.

Does withdrawal syndrome mean the third stage of alcoholism has begun?

Not necessarily. In Ukrainian addiction medicine, the appearance of withdrawal syndrome is the main sign of the transition from the first stage to the second. At the third stage it is more severe and lasts longer, while tolerance to alcohol, conversely, drops. The international classifications ICD-10 and ICD-11 do not use stages: there, withdrawal is one of the criteria of dependence syndrome. More details in the article “Stages of Alcoholism: From First to Third”.

If you are still unsure whether this is addiction at all, look at the signs as a whole, not only at the state after giving up alcohol. The signs and ICD criteria are listed in the article “Signs of Alcohol Addiction: How to Recognize the Problem”.

Frequently asked questions

Is alcohol withdrawal always life-threatening?

No, the mild form usually passes in a few days. It is the severe form, with seizures or delirium, that is dangerous. Only a doctor’s examination can show how it is likely to go in your case.

If a day has passed without seizures, is the danger over?

No. Seizures are possible up to 48 hours after the last drink, and delirium usually starts even later, on days 2–3. That is why for the first few days after stopping abruptly, the person should be supervised, even if they feel a little better right now.

Can you just tough out withdrawal without treatment?

In mild cases it sometimes passes without consequences. But the severity cannot be predicted in advance, and seizures and delirium are life-threatening without help. Even with relatively mild symptoms, it is better to consult a doctor than to rely on luck.

Can you call a doctor without giving the patient’s name?

You can call the hotline on behalf of another person and without giving a surname. How anonymity works once care begins is explained in the article “Anonymous Addiction Treatment: What It Really Means”.

What should I do if a loved one is on a binge and starts shaking or behaving strangely?

Don’t wait for it to “wear off.” Call the 24/7 hotline or an ambulance, especially if seizures, hallucinations or confusion appear, or the person no longer recognizes their surroundings.

This article is for information only and does not replace a consultation with a doctor. The severity of withdrawal syndrome and the scope of care needed are determined only by a doctor after an examination. Self-medication may be harmful to your health. If the condition is acute (seizures, hallucinations, delusions), call the 24/7 hotline or an ambulance.