Delirium Tremens: Symptoms, Timeline, Risk Factors, and Treatment

By: Sanford Behavioral Health
Posted on: May 7, 2026

Delirium Tremens (DTs) comes with very intense mental and physical symptoms. It can be scary to watch. You will know that something’s wrong if you’re around someone with DTs, but you may not know what it is. You might be watching someone have a seizure, sweat more heavily than you’ve ever seen a person sweat before, or you might hear them describe things that aren’t there. Being able to identify DT can save a life. We’ll talk about everything you need to know, from why it occurs to when to call 911 for alcohol withdrawal.

What Are Delirium Tremens?

Delirium Tremens is the most severe, life-threatening form of alcohol withdrawal. It’s caused by your nervous system going into shock. The reason this happens is that your body gets used to a constant presence of alcohol (a central nervous system depressant). It becomes reliant on the depressant, which is then removed. This causes a rebound effect where your central nervous system goes into overdrive.

It’s not the same as normal alcohol withdrawal. The main difference is that DTs are more severe. DTs are classified as a medical emergency due to rapid nervous system hyperactivity, severe confusion, and potential organ failure. It happens to about 2-5% of people who are hospitalized for alcoholism.[1]

Symptoms of Delirium Tremens

It’s important that you’re able to recognize DT if you are watching it happen to someone else so that you can seek medical attention right away. Unfortunately, many resources do not get into what DTs look like in action. Symptoms of delirium tremens include:

Confusion and disorientation. This looks like an inability to recognize familiar people or places, or severe cognitive disruption–not being able to tell you what day it is accurately, being confused about where they are or what’s going on.
Hallucinations. A person may see, hear, or feel things that are not there. This can include hearing voices (e.g., shouting, whispering, music, radio static, mocking, threats, family members’ voices) and feeling or seeing things, like bugs or rats, that are not actually on the person‘s body. One might experience intense, irrational fear for this reason. They might see walls moving, believe they see familiar acquaintances, or feel like they’re being touched or burned. They could believe that they’re somewhere they’re not, such as a prison.
Severe agitation and restlessness. This can be challenging for loved ones to see. A person may be irritable, punch, kick, scratch, bite, attempt to escape, tear off clothes, or attempt to pull out IV lines (if in a medical setting). Alcohol detox treatment professionals are equipped to help manage this and keep your loved one safe.
Seizures. What seizures look like can vary widely. A person may stare into space, stiffen suddenly, become unresponsive, experience involuntary jerking movements, shake violently, blink rapidly, fall abruptly, or lose consciousness.
Rapid heart rate and blood pressure spikes. Warning signs include shortness of breath, chest pain or tightness, dizziness, severe headache, or vision changes.
Fever and sweating. The person may be red, sweat excessively, and/or run a fever.

Not everyone develops all symptoms of DTs. Any of these signs is cause for concern. Stay calm. Contact a medical provider or emergency resource so that you or your loved one can get help.

When Do Delirium Tremens Start? The Withdrawal Timeline

Most resources describe DTs as occurring between 48 and 96 hours after your last drink and stop there. While this is accurate, it does not tell the full picture. It overlooks the importance of noticing early signs of DT, which escalate and are more likely to become fatal without treatment. Here is an accurate alcohol withdrawal timeline, including the clinical risks you or your loved one will face at each stage.

6-12 hours: Early withdrawal begins. People often experience anxiety, tremors, nausea, headache, and elevated heart rate. DT risk is low, but monitoring matters. If possible, it’s ideal for a person to enter detox before or within this timeframe.
12-24 hours: At this time, symptoms intensify. Withdrawal hallucinations may begin; these are distinct from DT hallucinations. They carry a lower risk of mortality, and unlike with DT, the patient is usually conscious and aware that hallucinations aren’t real. Seizure risk enters the picture.
24-48 hours: During this timeframe, seizure risk is highest. Not everyone seizes, but it is the most likely at this time.
48-72 hours: DT risk window opens. This is when full-onset delirium tremens are most likely to develop. If a person does develop DT, symptoms generally escalate rapidly.
72-96 hours: Peak DT risk. Most severe cases occur here. Medical emergency protocols are critical during this window.
Beyond 96 hours: For most people who develop DTs, symptoms begin to stabilize with treatment. Without treatment, this window carries the highest mortality risk.

Understanding this timeline can help you avoid serious, but preventable, consequences of DT. While entering alcohol detox treatment early is ideal, it’s not too late to get help, no matter where you or your loved one is in this timeframe.

Who Is Most at Risk for Delirium Tremens?

If you’ve been drinking heavily and regularly, see a healthcare provider so that you can stop alcohol use safely. How do you know if you or your loved one is at an increased risk of DTs? Factors that increase your risk of delirium tremens include:

Long-term, heavy alcohol use. Long-term alcohol use means that your body has been dependent on it for a long time, increasing the chances of more severe rebound central nervous system activity.
History of DT or alcohol withdrawal seizures. Statistically, people who have had DTs or alcohol withdrawal seizures before are more likely to have them again.
Prior failed attempts to detox from alcohol. Called the “kindling effect,” repeated episodes of withdrawal sensitize the brain, causing it to react more intensely to the removal of alcohol. Not only is DT more likely, but it’s often more severe in this population.
Co-occurring liver disease and other serious medical conditions. Many health conditions make it harder for the body to manage additional stressors. Liver disease compromises the body’s ability to detoxify.
Not having medical supervision (during current or previous withdrawal attempts). Lack of medical supervision allows the overactivation of the brain and nervous system to go unchecked and untreated.
Mental health conditions. People with mental health conditions are at a greater risk of DTs. This is often attributed to factors like a higher baseline level of psychological distress and increased vulnerability to disorganization or psychosis.
Nutrient deficiencies. Adequate nutrient status is important for body functions. A malnourished brain cannot handle the sudden surge of nervous system activity or excitability.
Older age. Reduced physical resilience, higher rates of some health issues, and age-related changes in metabolism increase DT’s risk.

Delirium tremens is a medical emergency. During the intake process, treatment centers should always assess people to calculate their risk and direct them to the appropriate service (e.g., inpatient medical detox programs).

Why Delirium Tremens Is Dangerous

Can alcohol withdrawal kill you? Yes. Alcohol withdrawal can kill you. Again, DTs are significantly more likely to be fatal than alcohol withdrawal. If left untreated, DTs come with a significant mortality rate of 37%.[2] What makes untreated DT fatal typically includes:

Cardiac arrhythmia.
Respiratory failure (a critical condition where your lungs can’t get enough oxygen into the blood or remove carbon dioxide, causing severe illness or death).
Uncontrolled seizure activity, which may cause aspiration, choking, or unconsciousness.
Hyperthermia (overheating – temperatures over 104 F).
Severe dehydration and electrolyte imbalance.

With treatment, the mortality rate of DT decreases dramatically. The body and brain can recover from alcohol abuse. Detox creates the foundation for recovery by ensuring physical stability and preventing issues that could impede the recovery of the body and brain. If DT isn’t addressed and neurological damage happens, for example, it may not be reversible, or recovery may take longer. Treatment for DT isn’t the same as addiction treatment–it only lasts until the person is medically stable.

When to Seek Emergency Help

When should you seek emergency help for alcohol withdrawal? The following signs indicate that you or the person you are around who is going through alcohol withdrawal needs immediate medical attention.

Fever above 101°F.
Slowed breathing.
Seizures or convulsions.
Loss of consciousness or inability to be roused.
Severe confusion or inability to recognize familiar people.
Chest pain or irregular heartbeat.
Severe agitation or violent behavior.

If any of these occur, call 911 or go to the nearest emergency room right away. Do not attempt to manage delirium tremens at home.

How Delirium Tremens Is Treated

Detox programs help people get through delirium tremens safely. Specifically, inpatient medical detox is the first standard of care. Outpatient or home management is not appropriate for DT because of the risks involved. Getting professional detox addresses DT before symptoms become fatal. Treatment for DT typically involves:

Medication: Short-term benzodiazepines are the main treatment for delirium tremens. They mimic the effects of alcohol and stabilize the nervous system. Patients experience a clinically significant decline in symptoms within two days.[3] If these are not enough, or if the client has a specific complaint that can be addressed by another medication, other medications may be added.
IV fluids and electrolyte replacement: Patients with DT are often severely dehydrated. If left unaddressed, fluid loss in DT can contribute to fatal seizures, cardiovascular strain, acute renal failure, and worsened neurological symptoms. Treating dehydration appropriately saves lives. IVs are used when oral hydration and electrolyte supplementation aren’t enough or aren’t possible.
Thiamine supplementation: Wernicke’s encephalopathy (WE) is a severe medical emergency caused by thiamine deficiency, which is common in people with alcohol use disorder. B1 or thiamine supplementation is particularly critical for patients with DT. If left unaddressed, WE can cause permanent neurological damage.
Vital sign monitoring: Quickly, DT can cause symptoms like elevated heart rate, respiratory problems, seizures, fever, and lack of consciousness. Consistent vital sign monitoring makes it possible for healthcare professionals to treat or prevent potentially fatal medical emergencies right away, whereas a person may not get access to care in time if they attempt to detox at home.
Psychiatric monitoring: People in alcohol detox programs also receive regular psychiatric monitoring to assess for confusion, disorientation, and hallucinations or delusions, which can occur in DT. Professionals may provide medications or make changes to the environment in your room (e.g., lighting) to alleviate psychiatric or cognitive symptoms caused by DT.

Medical detox programs have a very specific role. They make it possible to get off alcohol safely. Detox programs are also here to reduce discomfort and distress during what can otherwise be an uncomfortable time. Learn more about medically supervised detox and what to expect.

Can Delirium Tremens Be Prevented?

Can delirium tremens be prevented? Yes. In fact, DTs are largely preventable with proper medical supervision during alcohol withdrawal. That is why it is ideal to look for a detox program before you start the process of reducing or eliminating alcohol intake. When you or your loved one is in a detox program, there will be no need to keep an eye out for a potentially fatal emergency because medical supervision will already be in place.

When you first enter a detox program, you go through a thorough medical assessment. This, paired with consistent medical monitoring throughout the entirety of the detox process, means that professionals can prevent DT before it starts (or prevent escalation and mortality).

While supervised withdrawal is generally recommended to help you get off of alcohol as soon as possible, a tapering approach may be needed in some cases (e.g., instances where inpatient medical detox isn’t possible). Taping means that you will reduce alcohol consumption gradually to prevent the shock of stopping cold turkey.

You must still talk with a healthcare professional to taper off alcohol. They’ll guide you through the process and help you reduce consumption on an appropriate schedule. They will also assess medical risks and confirm whether this approach is safe for you.

What Happens After DT Stabilization?

First and foremost, DT stabilization itself achieves acute medical safety. Not recovery from alcohol addiction. Detox does not address:

Psychological dependence.
Behavioral patterns.
Underlying risk factors for alcohol use disorder (e.g., trauma, depression).

However, stabilization is what creates the possibility of recovery. It’s a critical first step. You should be proud of taking it. That said, you might wonder–what happens after alcohol detox? Treatment programs that typically follow include:

Residential inpatient treatment.
Partial hospitalization programs.
Intensive outpatient programs.

Ideally, people should start with the highest recommended level of care (e.g., residential inpatient treatment or a partial hospitalization program, which provides thorough addiction treatment on an outpatient basis) and transition into lower levels of care gradually as time goes on and they make progress. This is called a step-down approach. It reduces the risk of relapse by promoting a longer course of treatment, making it possible for you or your loved one to get continual support through each stage of the recovery process.

There is an alcohol addiction treatment program out there that will fit your or your loved one’s needs. During the admissions process, a professional can help you determine the right starting level of care for you.

[Explore Alcohol Use Disorder Treatment]

FAQs About Delirium Tremens

What are the first signs of delirium tremens?

Feelings of anxiety, tremors, nausea, and increased heart rate are often some of the first signs of DTs.

How long do delirium tremens last?

DTs usually last for 3-7 days. In the most severe cases, DTs can last for several weeks.

Can you die from alcohol withdrawal?

Yes. You can die from alcohol withdrawal. It is less common to die from typical alcohol withdrawal compared to DTs.

What is the difference between alcohol withdrawal and delirium tremens?

DTs are the most severe form of alcohol withdrawal. It’s distinguished by specific symptoms and an increased risk of mortality.

What does it feel like to have delirium tremens?

Everyone experienced DTs differently. Body tremors, bursts of energy, restlessness, confusion, sweating, stupor, tiredness, or fatigue, hallucinations, and severe discomfort are common things DTs patients experience.

When should you go to the hospital for alcohol withdrawal?

You can go to the hospital for alcohol withdrawal as soon as symptoms begin. If symptoms intensify or resemble DTs, go to the hospital immediately.

Can DTs happen if you’ve only been drinking for a few years?

Yes. However, it is most common in those who have been drinking for 10+ years.

Is delirium tremens the same as having seizures?

No. DTs can involve seizure activity, but it also involves other symptoms.

References

[1] Kafle, P., Mandal, A. K., Shrestha, B., Bhattrai, B., Bhandari, M., Bhagat, S., Shankar Kar, B., Sharma, D., & Gayam, V. (2019). Twenty-eight-day-long delirium tremens. Journal of investigative medicine high impact case reports. https://pmc.ncbi.nlm.nih.gov/articles/PMC6505229/

[2] Rahman, A. (2023, August 14). Delirium tremens(archived). StatPearls [Internet]. https://www.ncbi.nlm.nih.gov/books/NBK482134/

[3] Kaye, A. D., Staser, A. N., Mccollins, T. S., Zheng, J., Berry, F. A., Burroughs, C. R., Heisler, M., Mouhaffel, A., Ahmadzadeh, S., Kaye, A. M., Shekoohi, S., & Varrassi, G. (2024, April 4). Delirium tremens: A review of clinical studies. Cureus. https://pmc.ncbi.nlm.nih.gov/articles/PMC11069634/