When a person who drinks regularly and over a long period reduces or abruptly stops drinking, their body does not stay calm: it reacts. That reaction is what we know as alcohol withdrawal syndrome, a set of physical and psychological symptoms that appear precisely because the body had adapted to functioning with alcohol in the bloodstream. Understanding what it is, how it evolves and why in certain cases it requires medical supervision is essential, both for the person going through it and for those around them.

It is worth clarifying from the outset a point that causes a great deal of confusion and no small amount of fear: stopping drinking is always a healthy goal, but the way you do it matters. In significant dependence, withdrawing alcohol all at once and without support can be dangerous. This article aims to offer rigorous, calm information so that you understand why, without dramatising and without downplaying the seriousness it deserves.

What alcohol withdrawal syndrome is

Alcohol is a depressant of the central nervous system: it slows down brain activity. When someone drinks continuously for months or years, the brain compensates for that effect by speeding up certain mechanisms in order to keep its balance. A kind of internal counterweight is produced: the nervous system learns to be "more activated" to offset the constant sedation of alcohol.

The problem arises when alcohol suddenly disappears. That counterweight keeps working, but there is now nothing to hold it back, so the nervous system is left overexcited. This overexcitation is the root of withdrawal syndrome: tremors, anxiety, insomnia, sweating and, in the most severe cases, seizures or delirium. In other words, the symptoms are not "the alcohol leaving the body", but the response of a brain that had reorganised itself around the substance and now has to readjust.

Symptoms of withdrawal syndrome

The intensity varies enormously from one person to another and depends on factors such as the amount and duration of drinking, age, general state of health and previous episodes of withdrawal. The symptoms are grouped, broadly speaking, into three levels.

Mild symptoms

Trembling hands, especially in the morning.
Anxiety, restlessness and irritability.
Insomnia and fragmented sleep.
Sweating and palpitations.
Headache.
Nausea or loss of appetite.
Intense craving to drink.

Moderate symptoms

Increased heart rate and blood pressure.
Slight fever.
Mild confusion and difficulty concentrating.
Growing agitation.
Exaggerated sensitivity to light and sound.

Severe symptoms

Seizures, which usually appear within the first 24 to 48 hours.
Visual, auditory or tactile hallucinations.
Delirium tremens: a state of profound confusion, disorientation, intense agitation, fever and cardiovascular disturbances that constitutes a medical emergency.

Delirium tremens is uncommon, but when it occurs it can be life-threatening if not treated in time. That is why we insist that, in the case of significant dependence, withdrawal should never be faced alone.

Phases of withdrawal syndrome

Although each person is different, the process usually follows a recognisable time sequence that helps you know what to expect at each moment.

First 6 to 12 hours

The milder symptoms begin: tremors, anxiety, sweating, headache, nausea and insomnia. Many people describe it as a hangover that, instead of getting better, keeps getting worse.

From 12 to 48 hours

This is the window of greatest risk for seizures. Hallucinations may also appear which, curiously, the person sometimes recognises as unreal (what is known as alcoholic hallucinosis). Agitation and disturbances of pulse and blood pressure intensify.

From 48 to 72 hours

This is the period in which delirium tremens may develop in the most vulnerable people. Physical symptoms usually reach their peak during these days.

From the third or fourth day onwards

In most cases, the acute physical symptoms begin to subside gradually. However, it does not all end here.

Prolonged withdrawal

For weeks or even months, more subtle symptoms may persist: sleep disturbances, anxiety, mood swings, difficulty enjoying things and episodes of craving. This is known as prolonged withdrawal syndrome, and it explains why the first weeks of recovery are so delicate and why support should not be interrupted when the tremors disappear.

Why it is not advisable to stop drinking abruptly without help

There is a very widespread idea that stopping drinking is only a matter of willpower and of "toughing out the cold turkey". In mild dependence that may be so, but in moderate or severe dependence this belief is dangerous. Severe withdrawal is not simply uncomfortable: it can trigger seizures and cardiovascular complications that require medical care.

That is why the first step when facing significant dependence is a professional assessment to determine the level of risk. On the basis of that diagnosis, it is decided whether detoxification can be carried out on an outpatient basis with follow-up or whether it requires a more controlled setting. The good news is that, with the right support, this process can be gone through safely and much more manageably.

The treatment of withdrawal syndrome

The approach to withdrawal syndrome has two goals: to guarantee safety during the acute phase and to lay the foundations for lasting recovery. These are not the same thing, and confusing them is a frequent mistake.

Detoxification

This is the initial phase, focused on getting through physical withdrawal safely. Under supervision, treatments can be used that reduce symptoms, prevent seizures and control anxiety and insomnia. It is also common to replenish vitamins and correct possible nutritional deficiencies, which are very common in prolonged drinking. Detoxification is necessary, but on its own it does not cure the addiction.

The treatment of the addiction

Once physical withdrawal has been overcome, the deeper work begins. Stopping drinking is only the beginning; what is truly transformative is understanding the role alcohol played, learning to manage emotions without resorting to it and rebuilding a life in which drinking no longer makes sense. This is where individual therapy comes into play, along with addressing possible associated anxiety or depression, and developing new tools to cope with stress and high-risk situations.

The emotional component of withdrawal

It is easy to focus on the physical symptoms and forget that withdrawal is also an intense emotional experience. On stopping drinking, many people discover emotions they had been numbing with alcohol for years: anxiety, sadness, guilt, emptiness or irritability. This emotional surfacing is a normal part of the process, even if it is disconcerting and at times disheartening.

Understanding that this discomfort is temporary and part of the brain's readjustment helps you not to interpret it as a failure or as a reason to drink again. In fact, one of the great values of therapeutic support at this stage is offering a place to put into words what you are feeling, to understand what is happening and not to go through it alone.

After withdrawal: real recovery

Getting through withdrawal syndrome is an important achievement, but it is best seen as the doorway, not the finishing line. Recovery is a process that unfolds over time and involves rebuilding habits, relationships and a new relationship with oneself. The people who best sustain their abstinence in the long term are usually those who, as well as getting through the physical phase, do therapeutic work that addresses the deeper causes of their drinking.

Factors that influence the intensity of withdrawal

Not everyone experiences withdrawal with the same severity, and knowing the factors that influence it helps to assess the risk more accurately. In general, the intensity tends to be greater the higher and more prolonged the amount of alcohol consumed and the longer the habit has been maintained over time. Age also counts: the bodies of older people usually tolerate withdrawal less well. General state of health, the presence of liver, heart or metabolic diseases, and poor nutrition also increase the risk of complications.

A particularly relevant factor is having gone through withdrawal episodes before. There is a phenomenon whereby each new detoxification can turn out to be more intense than the previous one, as if the nervous system had become "sensitised". For this reason, people who have made several previous attempts to stop drinking abruptly usually need closer supervision. All these elements explain why individualised professional assessment is so important: two people who drink similar amounts may require very different approaches, and only a careful evaluation makes it possible to anticipate the risks and plan a safe withdrawal.

If you or someone close to you is considering stopping drinking and you are worried about what that process will be like, the most prudent thing is not to do it on your own when drinking has been heavy or prolonged. At Reconectar we accompany this journey with outpatient, individual and personalised treatment, in a confidential and close setting in Las Palmas de Gran Canaria. An initial assessment makes it possible to know what degree of dependence we are dealing with and to design a safe plan tailored to you. Taking that first step, talking to a professional and no longer carrying this alone, is usually the moment when recovery stops being a distant idea and becomes something possible.

Alcohol withdrawal syndrome: symptoms, stages and treatment