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How Long Does Alcohol Poisoning Last? What You Need to Know

Alcohol poisoning is a medical emergency, and no number of hours makes an unresponsive person safe. Call 911 if you suspect it.

Medically reviewed by Daniel R. Karlin, MD, MA, Chief Medical OfficerPubMedGoogle Scholar

Updated October 12, 20266 min read

A washcloth in a bowl and a glass of water on a nightstand.

Alcohol poisoning, also called alcohol overdose, is a medical emergency. There is no reliable number of hours after which a person who is unresponsive or severely intoxicated can be assumed to be out of danger.

Call 911 immediately if alcohol poisoning is suspected. Do not wait to see whether the person sleeps it off or develops every warning sign.

Drinking too much alcohol can lead to this condition. While the immediate effects can be treated, heavy drinking also has long-term consequences.

Keep reading to learn more about alcohol poisoning and how to get help.

What Is Alcohol Poisoning?

Alcohol poisoning occurs when excessive amounts of alcohol are consumed in a short period. It is a severe and potentially life-threatening condition that requires immediate medical attention. Unlike a typical hangover, which may leave you feeling groggy or nauseous, alcohol poisoning is much more serious.

When we consume alcohol, it enters our bloodstream and affects various organs in our body. The liver plays a crucial role in metabolizing alcohol. However, when we drink excessively, the organ struggles to keep up.

Alcohol can also keep entering the bloodstream from the stomach and intestines after someone stops drinking or loses consciousness. At high levels, it can impair the brain functions that control breathing, temperature and other basic processes. NIAAA: Alcohol overdose

How Many Drinks Are Safe?

No single number of drinks is safe for everyone. Different individuals may have varied tolerances for alcohol. What might be considered safe for one person may not be for another.

It also helps to know what counts as a standard drink, because a large pour, a strong beer or a mixed drink may contain more than one.

It's always advisable to follow guidelines provided by reputable sources such as government health organizations or consult with healthcare professionals if you have any concerns.

Symptoms of Alcohol Poisoning

Knowing the symptoms of alcohol poisoning is crucial in order to recognize a potentially life-threatening situation. The signs of alcohol poisoning can vary depending on the individual.

Confusion or Disorientation

Someone experiencing alcohol poisoning may appear confused. They may struggle to speak clearly or seem unaware of their surroundings. Difficulty waking, or being unable to stay conscious, is a warning sign.

Vomiting

Another telltale sign is vomiting. If someone has consumed excessive amounts of alcohol and starts vomiting uncontrollably, it could be a sign that they are suffering from alcohol poisoning. Vomiting with reduced alertness is especially dangerous.

Slow or Irregular Breathing

If you notice someone taking shallow breaths or struggling to breathe properly after drinking heavily, it's important to seek medical help immediately. This could indicate a severe case of alcohol poisoning.

Skin Color

Pale, bluish or clammy skin, an unusually low body temperature and seizures are also potential indicators that an individual may be experiencing this dangerous condition. Remember that these symptoms should never be ignored or taken lightly; prompt action can save lives. NIAAA: Alcohol overdose

What to Do While Help Arrives

Stay with the person and follow the emergency dispatcher's instructions. If they are unconscious but breathing, place them on their side when you can do so without risk to reduce the chance of choking. If breathing is absent or abnormal, the dispatcher can guide CPR.

Do not give coffee, put the person in a cold shower, force them to walk, or try to make them vomit. Do not leave them alone.

Alcohol combined with opioids, benzodiazepines or other sedatives can be particularly dangerous. Tell the dispatcher about anything else the person may have taken, even if you are not sure. If opioid use is possible, give naloxone if it is available and follow its instructions. Naloxone reverses opioid overdose. It does not reverse alcohol poisoning, so emergency care is still necessary. CDC: Responding to an Overdose

Long-Term Symptoms of Alcohol Poisoning

Excessive alcohol consumption can have severe long-term effects on the body. These effects come from heavy drinking over time rather than from a single episode of alcohol poisoning. A single overdose does not by itself establish alcohol use disorder, but it is a serious reason to be assessed.

Liver Damage

The liver is responsible for metabolizing alcohol. Excessive drinking over time can lead to inflammation and scarring, known as alcoholic hepatitis or cirrhosis.

This can impair the liver's ability to function properly and may result in serious complications such as liver failure.

Brain Damage

Heavy drinking over time can affect the brain. This can lead to the following:

  • Cognitive impairment
  • Memory loss
  • Difficulty with coordination and balance

These effects may become more pronounced over time if excessive drinking continues. For more, see how alcohol impacts the brain long term and NIAAA: Alcohol and the brain.

Death

Alcohol poisoning can be fatal if not treated promptly. If you or someone near you has symptoms of alcohol poisoning, call 911.

How Long Does Alcohol Stay in Your System?

It's important to note that even after you've stopped drinking and appear sober again, there may still be traces of alcohol in your blood and urine. How long a test can detect it depends on the test.

A blood alcohol level or a detection window also answers a different question from whether a person is medically stable. Online calculators cannot tell you when emergency monitoring can stop.

Men vs. Women

Women tend to have a lower tolerance for alcohol than men. This is because they typically have a higher percentage of body fat and lower levels of certain enzymes that help break down alcohol. This means that alcohol is more concentrated in their blood compared to men who may have a similar amount of drinks.

Metabolism

The rate at which your body metabolizes alcohol can vary from person to person. It can be influenced by various factors such as age, weight, and overall health.

Type and Amount of Alcohol

Additionally, the type and amount of alcohol consumed will also affect how long it stays in your system. Different alcoholic beverages have varying levels of alcohol content, with spirits typically having a higher concentration than beer or wine.

Drinking History

Chronic heavy drinkers or individuals with liver damage may take longer to eliminate alcohol from their bodies compared to occasional drinkers.

This is because the liver is responsible for breaking down and metabolizing alcohol in the body. Chronic heavy drinking can lead to inflammation and scarring of the liver, also known as cirrhosis. This damage can impair the liver's ability to function properly, including its ability to break down alcohol.

How Long Does Alcohol Poisoning Last?

When it comes to alcohol poisoning, one question that often arises is: how long does it last? There is no fixed answer. How long the danger lasts depends on the amount of alcohol consumed, how quickly it was consumed, other drugs or medications, and the individual's overall health.

Only a medical assessment can determine the care and monitoring a person needs. Feeling better, vomiting, or waking briefly does not establish that the emergency has passed. NIAAA: Alcohol overdose

Hospital care may include close monitoring and support for breathing and other complications. The length of observation depends on the clinical situation, not on a standard home recovery schedule.

Getting Help for a Drinking Problem

The first step towards recovery is acknowledging that there is a problem. If you drink too much or can't control how much you drink, you should seek professional help.

There are numerous resources available for individuals seeking support and treatment for alcohol abuse. NIAAA's Alcohol Treatment Navigator explains how to find and evaluate care.

Alcoholics Anonymous (AA) is a support group that provides a non-judgmental space. People can share their experiences and get guidance from others in similar situations.

Additionally, seeking the assistance of a healthcare professional or addiction specialist can provide valuable insight into personalized treatment options.

People who drink heavily and regularly can develop dangerous withdrawal when they stop. Ask for medical guidance before making an abrupt change. Seizures, hallucinations or severe confusion need emergency attention. NIAAA: Cutting down or quitting alcohol

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