Alcohol Detox

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KEY TAKEAWAYS

Alcohol detox is withdrawing from alcohol with medication and support from medical professionals and is considered safer than withdrawing unassisted.

Alcohol withdrawal symptoms vary based on alcohol intake levels and previous experiences under withdrawal.

The process of alcohol cessation and withdrawal is completed in a hospital, clinic or at home (medically-assisted) using medication [1].

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Alcohol Withdrawal

Alcohol withdrawal is the process of cutting down on alcohol or stopping drinking altogether.

The central nervous system adjusts to deal with the amount of alcohol in the body (tolerance), and compensates for the depressive effects alcohol has on brain function and nerve communication.

Alcohol is a depressant. When consumption is reduced, the brain transitions into a hyperactive state, which may lead to convulsions.

Alcohol Withdrawal Symptoms To Expect

Mild Drinking

After mild alcohol use, withdrawal symptoms may include:

  • Headaches
  • Sweating
  • Hand Tremors
  • Nausea and vomiting
  • Heart palpitations
  • Increased anger and anxiety 

Mild or casual drinkers consume low amounts of alcohol on rare occasions, consuming alcohol no more than once per week or a few times per month.

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Moderate Drinking

Moderate drinkers may experience withdrawal symptoms, such as:

  • Irritability
  • Tiredness
  • Nightmares and disturbed sleep
  • Depression
  • Anxiety
  • Mood swings
  • Difficulty concentrating
  • High temperature or chills

Moderate drinking is classed as 2 drinks per day for men, and 1 drink per day for women, with several drink-free days during the week [2].

Heavy Drinking

 Those ceasing intake after drinking heavily may experience both physical and psychological side effects:

  • Delirium tremens (DTs) - occurs in between 3-5% of those experiencing acute symptoms [3]
  • Severe disorientation
  • Visual delusions - affect 0.6-0.7% of those withdrawing from severe alcohol misuse [4]
  • Neurological fits/spasms
  • High blood pressure
  • Depression
  • Anxiety

Heavy alcohol use is classed as more than 15 drinks per week for men, and more than 8 drinks per week for women [5].

When Do Alcohol Withdrawal Symptoms Start

Symptoms from ceasing low levels of intake begin from 5-10 hours after your last drink.

Symptoms from ceasing moderate drinking occur from 12-24 hours after drinking last.

Symptoms when ceasing long-term heavy drinking occur 48 hours after the last drink, with some experiencing symptoms for weeks.

Tolerance levels in those with a long-term drinking pattern are higher than moderate drinkers, meaning they require more alcohol to counteract cessation side effects.

When Is Alcohol Withdrawal The Worst

Symptoms tend to peak 48 hours after the last use of alcohol, when the user is at greatest risk of having a seizure.

Physical urges for alcohol typically peak 5-7 days after cessation, and may last up to 2 weeks.

Abbeycare's clinical experience indicates that psychological cravings last for months or years after beginning recovery, as memories and associations to alcohol take time to extinguish long after removing alcohol from your system.

Length of Alcohol Withdrawal

Drinking Pattern

Intake Level

Duration Of Withdrawal

Casual Drinking

1 drink p/wk for women vs 2 drinks p/wk for men [6]

Non; potential for feeling unwell as will have a low tolerance [7]

Moderate Drinking

4 drinks p/wk for women vs 5 drinks p/wk for men

Moderate withdrawal stops after 48 hours

Heavy Drinking

8 drinks p/wk for women vs 15 drinks p/wk for men [8]

Symptoms from 48 hours to several weeks [9]

How To Cope With Alcohol Withdrawal and Detox

  • Developing a pattern of a healthy diet and good sleep schedule - focusing on short-term goals can help alleviate overwhelm in recovery
  • Cut down the amount of alcohol you drink very gradually instead of going cold turkey - especially if withdrawing at home
  • Maintain regular contact with medical staff - medications may require different dosages for each patient, with incorrect dosages leading to overdose, cross-addiction, or symptoms not being treated
  • Selective extinction - after abstaining from alcohol, the endorphin receptors become more sensitive and using this time for endorphin-releasing activities allows the brain to learn healthier habits
  • Reading - books that discuss recovery, family relationships, anxiety and depression help the user to understand withdrawal effects whilst focusing on sobriety 

If you or a loved one is struggling with alcohol cessation, seek professional medical advice.

It is important to respond dynamically to each individual's circumstances, such as:

  • Utilising a good support network - inform family and friends of the expected timeline and create a visiting schedule to maximise support
  • If there is a lack of a support network, contact a GP, helplines, or local support groups (e.g. alcoholics anonymous meetings)
  • Reducing caring responsibilities - 34.1% of those with caring responsibilities reported an increase in alcohol use disorder (AUD), so alleviating these responsibilities assists in working towards alcohol abstinence [10]
  • Adapting to changes in care plans - the first form of treatment is not always successful, and changes may need to be made to the care plan to allow for costs and time spent on treatment

Reducing Symptoms

Ways to anticipate and prevent complications when you quit drinking are:

  • Medication - naltrexone, acamprosate, and tiapride reduce alcohol cravings
  • Speaking to a supportive family doctor, if possible, the user being comfortable, and the doctor having previous medical knowledge, assists in predicting and reducing symptoms
  • Slowly decreasing alcohol over time to slow down symptoms of withdrawal, especially after long-term alcohol consumption
  • Holistic methods such as acupuncture and massage therapy  reduce both the physical pain and emotional stress of treatment

Alcohol Withdrawal Timeline Day By Day

6-12 hours

  • Headaches
  • Hand tremors
  • Alcohol cravings
  • Beginning to feel depressed
  • Anxiety
  • Stomach pains
  • Insomnia
  • Poor appetite

12-24 hours

  • Possibility of Delirium Tremens
  • Hallucinations
  • Seizures

48 hours

  • With less severe intake, mild symptoms may begin to disappear
  • Fever
  • Sweating
  • Confusion
  • Increased blood pressure

7 and 10 days

  • The effects of ceasing intake usually disappear between 4-7 days
  • Those with chronic AUD may go through adverse effects for several weeks
  • Irritability
  • Depression
  • Unstable mood

Withdrawal vs Hangover

75% of those who drink high amounts will experience a hangover, whereas withdrawal will only occur in those who have become physically dependent on alcohol [11].

Whilst initial symptoms are similar, hangover symptoms typically stop 24 hours after the last consumption of alcohol, whereas signs and symptoms of alcohol withdrawal may last for several weeks.

Alcohol withdrawal syndrome may result in life-threatening symptoms, such as convulsions and DTs, which do not occur during a regular hangover.

Alcohol Detox Process

Alcohol detox is the process of withdrawing from alcohol in a controlled way, supported by medical professionals, and using prescription medication to help you overcome the serious side effects of stopping drinking.

Medications Used During Detox

Although treatment varies, patients are typically given medication within the first 24 to 72 hours to make the detox process easier by managing any withdrawal symptoms with:

  • Benzodiazepines - e.g. Chlordiazepoxide (Librium), Diazepam (Valium), or Oxazepam (Serax) are used to treat symptoms such as disrupted sleep, anxiety and muscle spasms, and reduce the risk of convulsions.
  • Anticonvulsants - e.g. Carbamazepine (Tegretol), Oxcarbazepine (Trileptal), or Gabapentin (Neurotonin) are secondary drugs used to control acute symptoms.
  • Antagonist medication - Naltrexone (Vivitrol/Revia), Disulfiram (Antabuse), Acamprosate (Campral)

This stage takes place on an inpatient basis in a clinic or on an at-home basis, assisted by a professional alcohol treatment nurse.

Discontinuing alcohol at home without medical help is not advised, as some patients require immediate medical care due to severe withdrawal symptoms like neurological fits.

Detoxing A Chronic Alcohol User

The primary concerns when treating a chronic alcohol user as compared to a casual drinker are:

  • Higher tolerance - people with alcohol use disorder are unable to quit drinking cold turkey due to the level of alcohol they consume
  • Delirium Tremens, convulsions, or hallucinations
  • Possibility of relapse - based on our first-hand experience, the fear of severe adverse effects contributes to restarting drinking
  • Overcoming emotions - without alcohol to numb emotions, feelings such as guilt (realising the negative impact drinking has had on others), and the emotions that caused addiction originally, may lead to anxiety and depression

Further alcohol treatment is more important when it comes to chronic alcohol disorders, as the medical phase only cures the physical dependence on alcohol, not the emotional causes and triggers of addiction, including:

  • External triggers - places, people and situations where previous drinking habits occurred
  • Anxiety - addiction may have started as a means to cope in social environments
  • PTSD and trauma - men with PTSD run a 2-fold increased risk of becoming addicted to alcohol compared to men without PTSD [12]

Those with chronic alcohol addiction require the therapy aspect of the programme, including group sessions to address emotional triggers and promote long-term recovery.

What Is The Alcohol Detox Process

Medical assessment

Patients will meet with the facility's medical team to assess the right treatment for alcohol addiction and create a treatment timeline.

Withdrawal

Alcohol intake is stopped or gradually reduced, based on individual need, and side effects begin.

Treatment continues until symptoms start to subside, although symptoms can vary from person to person; the duration is typically 1 - 2 weeks.

Detoxing in a residential facility increases the likelihood of a successful treatment outcome and gives you the best chance of managing withdrawal symptoms when you stop drinking because controlled medications and 24-hour care are provided.

The next stage

After you have completed your treatment, you are ready to complete the rest of the residential programme, including intensive psychological therapy, which is not available at home.

Treatment For Alcohol Detox vs Alcohol Withdrawal

Medically assisted detox is the safe and controlled process of reducing the amount you drink or stopping drinking whilst managing symptoms with medication.

Alcohol withdrawal attempted without medical assistance and supervision does not manage the severity of symptoms and creates the potential for patients to relapse without support.

Remission rates for those who undergo unassisted alcohol withdrawal are 50-80%, whereas rates for those who have assistance are between 20-50% [13].

Long-term, heavy drinkers require a medically supervised detox, as they are at risk of severe alcohol withdrawal, with symptoms such as convulsions and DTs. 

Undergoing withdrawal instead of detox may occur when:

  • The NHS cannot afford the cost of residential treatment
  • There have been frequent early discharges from treatment by the patient
  • Patients are triggered by aspects of treatment itself - such as staff or other clients

In these circumstances, the care plan is managed by an ADP team, preparing for access to services and support through treatment [14].

Alcohol Detox Symptoms

Physical symptoms

  • Rapid heartbeat
  • Raised blood pressure
  • Seizures
  • DTs - only affecting heavy users
  • Fever - Fevers during the process typically range from 99.5°F (37.5°C) to 100.3°F (38.3°C), but temperatures above 100.4°F (38°C) require medical attention.
Fatigue

75% of people dependent on alcohol report inability to sleep during detox because [15]:

  • Cognitive dysfunction in 80% of users makes withdrawal fatigue 79% more likely [16] [17]
  • Depression occurs in 41% of people during the process, resulting in a 50% higher chance of experiencing fatigue [18] [19].
  • The ratio of glutamate to GABA decreases by 17.66%, and cortisol levels rise by 20% during the process, both resulting in fatigue [20] [21].
Headache

Headaches occur due to:

  • 20-30% reduction in GABA levels at the start of the process [22]
  • Dehydration and Pressurenatriuresis: blood pressure rises of 20-30mmHg followed quickly by blood pressure reductions during detox trigger Pressurenatriuresis and increased urination (3-4 litres per day) [23]
  • The excessive release of Corticotropin-Releasing Factor (CRF) during cessation activates mast cells and signals vasodilation  [24]
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Psychological and emotional symptoms

  • Fear of addiction treatment - previous negative experiences may lead to a fear of repeating symptoms, causing continued alcohol abuse
  • Depression and anxiety - 63.8% of those detoxing are suffering from depression, particularly drinking to cope patterns have been used [25]
  • Guilt - for past behaviour and actions towards family and friends

Symptoms - How Long?

Factors that lengthen the duration and increase the severity of symptoms are:

  • How many years has drinking been occurring? - 50% of those with a history of long-term heavy alcohol consumption experience symptoms after cessation [26]
  • How much alcohol is consumed whilst drinking?
  • How often does drinking occur?
  • Co-occurring mental health disorders
  • Co-occurring substance abuse - 6.4% of those suffering from co-occurring substance abuse or mental health disorders experience alcohol withdrawal symptoms after abstaining  [27]

Alcohol Detox Timeline - Day By Day

Timeline of Symptoms

Alcoholism

Eating Disorders

6-12 Hours

Headaches, sleeplessness,
stomach pains and hand
tremors [28]

Headaches, insomnia,
stomach pains and hand
tremors- symptoms are
observed and medication is
provided

12-24 Hours

DTs,
hallucinations
[29]

Potential for oversedation,
ataxia, elevated blood pressure
and respiratory issues

48 Hours

Fever, sweating and high
blood pressure

Potential for DTs and visual delusions, if the tapering dose is done too quickly

7 Days

Easing of symptoms -
continuing in some severe
cases

Easing or removal of
symptoms [30] [31]

At Home

Detox at home involves a specialist nurse visiting four times a day for 15 minutes to check vital signs, while the rest of the process is completed with the support of friends and family.

A home detox can help those with:

  • No prior history of convulsions
  • A strong pre-existing support system that is available to visit frequently
  • A history of consuming less than 30 units daily

At Home

In A Clinic

Care from a nurse specialist 4 times per day

Care is provided 24 hours a day

Symptoms treated with medication - may take time for the nurse to arrive to administer the dosage  [32]

Symptoms treated with medication
immediately

Nurse specialists look for how the patient is reacting, breathing, heart rate and blood pressure

Medical staff look for physical
symptoms as well as psychological reactions
to discuss during further treatment

Support is required from friends and family during

Support from friends and family assists in
recovery, but is also provided by clinic staff
[33]

Detox In A Clinic

Discontinuing alcohol in a residential clinic becomes necessary when:

  • There is evidence of excessive alcohol consumption over a long period of time
  • Enabling friends or family members - those who make excuses and take responsibility for the drinker hinder recovery
  • Co-occurring mental health disorders - those with bipolar disorder, depression or anxiety have difficulty maintaining abstinence without support, need supervision due to potential suicide attempts, and benefit from the mental health services provided in a residential setting
  • Symptoms of liver cirrhosis or disease occur
  • Denial about how the effects of alcohol - during treatment, the patient has the opportunity to accept the level of their addiction and how it has affected work, relationships and overall health
  • Negative impact on family - neglecting the needs of children and causing partners to feel ashamed and overwhelmed with extra responsibilities creates a difficult environment
  • A breaking point that causes the drinker to consider their behaviour, including a hospital admission, an accident, drink driving or a nervous breakdown
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Detox In Hospital

Completing the process in a hospital setting is required when there is:

  • Previous or current seizures
  • Co-occurring substance use disorder
  • Suffering from schizophrenia or psychosis - 4% of patients in recovery develop psychosis, which may be due to infection, trauma, liver disease or electrolyte abnormalities that require hospital care [34]
  • Suspected to suffer from Wernicke's encephalopathy, seizures, or Delirium Tremens

Hospital vs Clinic vs Home

At Home

In A Clinic

In A Hospital

Must not have severe AUD

May have mild to severe
AUD

Must have severe AUD and be at risk of life-threatening symptoms

Assessments of treatment
completed by nurse, no
approval needed

Assessments done by clinic
staff, approval for suitability for treatment needed

Assessments performed by
hospital staff

Dangers of less medical care and being around triggers

Fewer dangers due to 24-hour care

Fewer dangers due to 24-hour care

Around 7 days - longer if the
patient is distracted by
triggers

Around 7 days - longer if the
patient has severe AUD

Around 7 days - potentially
longer as patients are
experiencing severe side
effects

Suitable for mild to moderate symptoms

Suitable for moderate to
serious symptoms

Suitable for severe symptoms

Not suitable for patients with liver cirrhosis or disease

Suitable for patients with liver cirrhosis or disease

Suitable for patients with liver cirrhosis or disease

No support afterwards [35]

Support provided afterwards [36]

No support afterwards [37]

Is It Bad To Drink Alcohol While Detoxing?

Medication provided enhances the effects of GABA to reduce side effects, with excess GABA from alcohol use causing a lack of brain activity.

Benzodiazepines, commonly prescribed during treatment, cause dangers when combined with alcohol, such as:

  • Increased risk of overdose
  • Physical side effects - nausea, vomiting, lethargy, allergic reactions, heart attacks, strokes
  • Liver cirrhosis and disease, causing further damage to what has already been done by alcoholism

Wider Addiction Treatment

A comprehensive treatment plan is necessary to achieve and maintain sobriety, which includes therapy to identify and resolve the causes of alcohol addiction and aftercare to assist in relapse prevention.

Physically removing alcohol from your body does not solve:

  • Triggers for using alcohol
  • Enablers and social groups that encourage drinking habits
  • Co-occurring mental health disorders that may be causing alcohol dependency

Detox alone has a success rate of between 20-50%, whereas a full addiction treatment programme has a success rate of 60%, meaning those who are not successful initially may have to complete the process again and have to pay for both sets of treatment [38].

Medical Detox Is Not Rehab

Alcohol rehab provides:

  • 24-hour care from treatment providers
  • Support from staff as well as other clients
  • Removal from the home environment and causes of addiction
  • Different forms of therapy, such as grief and trauma counselling, anger management and family therapy

Studies show that inpatient rehab treatment helps to avoid alcohol relapse, increase social functioning, and decrease criminal activity [39].

Ideal Candidate for Alcohol Detox

Detox is best for individuals who are:

  • Not bingeing on alcohol, but not attempting to go cold turkey and risk extreme side effects
  • Realistic about the difficulties of sobriety - being aware that potential obstacles and slips may occur, and this does not mean failure
  • Perhaps struggling with finances due to the costs of having an alcohol habit, but with supportive friends and family members offering to finance treatment
  • Receiving external support from friends, family, and employers - by creating boundaries, asking the drinker to seek treatment and stating the negative consequences of not getting help (e.g. job loss, no contact)
  • Experiencing noticeable changes in appearance, e.g. gaining or losing weight, lack of hygiene, and not caring about their appearance, demonstrates how much alcohol addiction has taken over
  • Experiencing negative emotions as a result of worsening drinking - no longer experiencing increased confidence or reduced social anxiety, but depression and anxiety

Preparing for an Inpatient Stay

Being aware of what to expect, such as the overall process, the treatment options available, and the length of the programme, reduces anxiety and creates a positive mindset for treatment.

The ideal mental and emotional state of a chronic alcohol abuser entering treatment is someone prepared to confront and deal with emotions that may arise during treatment, such as shame, guilt, anger and trauma.

Difficult family relationships, stress, grief and trauma may also cause the patient to do better in treatment, as they have the opportunity to face the emotions that led to alcoholism and the consequences of their actions, causing more motivation towards recovery.

Whether or not this is the first stay in an alcohol facility, a long-term heavy drinker who is entering treatment will have begun to accept the addiction and take accountability for their actions as part of their recovery journey.

Only essential items are required to be brought into an alcohol facility, including:

  • 1 week's worth of clothing
  • Stationery and notepads for writing
  • Hygiene products - toothbrush and toothpaste, deodorant and feminine hygiene products
  • Contact information of loved ones

Although it varies between clinics, items that are not allowed in facilities include mobile phones, items containing alcohol, such as mouthwash and expensive items such as jewellery.

Risks of Detoxing from Alcohol

8% of patients die after experiencing convulsions or fits during the process [40].

If round-the-clock medical assistance or NHS resources are unavailable, it may be safer for the alcohol abuser to keep drinking instead of attempting to cease drinking alone. 

48% of patients who experienced convulsions during treatment had attempted detox five or more times previously, meaning repeated attempts are to be avoided [41].

Reasons those with AUD repeatedly go through the process:

  • Social groups - Patients who immediately return to the same groups of other drug and alcohol users or enablers
  • Being willing to be treated for physical addiction but not wanting to change behaviour or addictive pattern
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About the author

Harriet Garfoot

Harriet Garfoot BA, MA has an Undergraduate degree in Education Studies and English, and a Master's degree in English Literature, from Bishop Grosseteste University. Harriet writes on stress & mental health, and is a member of the Burney Society. Content reviewed by Laura Morris (Clinical Lead).

Last Updated: October 29, 2025