Delirium Tremens
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Delirium Tremens


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Delirium tremens (DTs) is a severe disturbance of the brain caused by alcohol withdrawal. This condition is serious and can cause death. About 5% of alcohol-dependent people experience DTs.

Adult Brain

Brain Man Face

The sudden withdrawal or decrease of alcohol can cause severe disturbances in the brain.

© 2008 Nucleus Medical Art, Inc.


DTs occur when a person who repeatedly drinks large amounts of alcohol suddenly stops or decreases the amount of alcohol consumed.

Risk Factors

A risk factor is something that increases your chance of getting a disease or condition. Risk factors for DTs include:

  • History of DTs
  • Other medical problems in addition to alcohol abuse
  • Brain damage


Symptoms usually begin 2 to 4 days after suddenly stopping or decreasing alcohol intake. Symptoms may include:

  • Anxiety
  • Confusion
  • Delirium (alternating levels of consciousness)
  • Trouble sleeping
  • Bad dreams
  • Severe agitation
  • Fever
  • Hallucinations (the perception of a thing, voice, or person that is not present)
  • Delusions (a false belief that is strongly held)
  • Tremors of the hands, head, or body
  • Severe sweating
  • Rapid heartbeat
  • Nausea
  • Increased rate of breathing
  • Increased blood pressure
  • Increased body temperature
  • Seizures

In severe cases, DTs can result in death, especially if untreated.


The doctor will ask about your symptoms and medical history, and perform a physical exam. The diagnosis of DTs is usually based on the symptoms and signs of the disorder. Tests may include:

  • Blood tests to measure liver function or electrolytes
  • CT scan of the brain—a type of x-ray that uses a computer to make pictures of the inside of the brain


Treatment can be difficult. DTs are likely to last for 5 to 7 days regardless of the therapy used. Clearing of DTs may begin in 12 to 24 hours, but may take up to 2 to10 days. Treatment for alcohol abuse is necessary once DTs are under control.

Treatment may include:


Medications may include:

  • Sedatives (such as benzodiazepines) to:
    • Calm agitation
    • Ease withdrawal symptoms
  • Aspirin or acetaminophen to lower fever

Vitamins and Fluids

Severe, life-threatening vitamin deficiency or dehydration may accompany DTs. Treatment may include:

  • Intravenious fluids, magnesium, and glucose
  • Intravenous doses of vitamin C and B-complex vitamins, including thiamin


Treatment for alcohol abuse may be done in a hospital setting or while living at home. It may involve individual or group therapy. Many people seek support by participating in groups such as Alcoholics Anonymous (AA).


To prevent having DTs, do not abuse alcohol. If you do drink large amounts on a regular basis, do not suddenly decrease the amount or stop drinking on your own. Rather, get advice from your doctor on the safest way to lower your intake.


Alcoholics Anonymous

American Academy of Family Physicians

National Institute on Alcohol Abuse and Alcoholism


Canada Public Health

Canadian Centre on Substance Abuse


Alcohol. Merck website. Available at: . Accessed February 26, 2008.

American Academy of Family Physicians website. Available at:

Harrison's Principles of Internal Medicine . 15th ed. McGraw-Hill Professional Publishing; 2001.

The Merck Manual of Medical Information . Simon and Schuster, Inc.; 2000.

National Institute of Alcohol Abuse and Alcoholism website. Available at:

Last reviewed November 2007 by Ryan Estévez, MD, PhD, MPH

Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.

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