Alcohol poisoning: Symptoms, treatment, and when to go to the ER

Alcohol poisoning is not just being "really drunk." It is a medical emergency that can turn fatal within hours if untreated. Every year, an average of 6 people in the United States die from alcohol poisoning every day — a figure that spans all age groups and backgrounds.¹ Knowing the difference between heavy intoxication and a true overdose, and knowing what to do, can save a life.

What is alcohol poisoning?

Alcohol poisoning — also called alcohol overdose — happens when a person drinks more alcohol than the body can safely process. The liver metabolizes alcohol at a fixed rate of roughly one standard drink per hour.² When alcohol enters the bloodstream faster than that, the blood alcohol concentration (BAC) rises to levels that begin to suppress the central nervous system. At high enough levels, the brain can no longer control breathing, heart rate, and body temperature.

Binge drinking is the most common cause: consuming 4 or more drinks for women or 5 or more for men within about 2 hours.¹ But any person — regardless of weight, tolerance, or experience — can develop alcohol poisoning if they drink enough, fast enough.

Signs and symptoms of alcohol poisoning

Recognizing alcohol poisoning early is critical. Classic warning signs include:^2,3

• Mental confusion, stupor, or inability to be roused
• Vomiting (especially while unconscious)
• Seizures
• Slow breathing — fewer than 8 breaths per minute
• Irregular breathing — a gap of more than 10 seconds between breaths
• Pale, bluish, or cold, clammy skin
• Very low body temperature (hypothermia)
• Unconsciousness and inability to be awakened

A person does not need to have every symptom for their situation to be life-threatening. If you see any of these signs, treat it as an emergency.

When to call 911 vs. go to urgent care

If you suspect alcohol poisoning, call 911 immediately. This is not a situation for urgent care. Urgent care facilities are equipped for non-life-threatening conditions, but alcohol poisoning can require oxygen therapy, IV fluids, stomach pumping, and intensive monitoring that only an emergency department can safely provide.³

Call 911 if the person:

• Cannot be awakened or is unconscious
• Is breathing fewer than 8 times per minute or has irregular breathing
• Has had a seizure
• Has bluish or pale skin
• Is vomiting while unconscious

Do not wait to see if they "sleep it off." A person who passes out can continue to absorb alcohol from their stomach even while unconscious, meaning their BAC can keep rising after they stop drinking.²

What to do while waiting for help

While waiting for emergency services:^2,3

• Stay with the person — never leave them alone
• If they are unconscious, place them on their side in recovery position to prevent choking if they vomit
• If conscious, try to keep them sitting upright rather than lying flat
• Keep them warm if possible — alcohol causes dangerous heat loss
• Do not give them coffee, food, more alcohol, or cold showers — none of these help and some can cause additional harm
• Be prepared to tell emergency responders how much was consumed and what type of alcohol

What does not work

Several popular myths about "sobering up" are not just unhelpful — they are dangerous. The following do not reverse alcohol poisoning or speed up how quickly the liver processes alcohol:²

• Drinking coffee or caffeinated beverages
• Taking a cold shower
• Eating food
• Walking around
• "Sleeping it off" without supervision

The only substance that processes alcohol is the liver, and it works at its own pace regardless of what else you do.

Hospital treatment for alcohol poisoning

At the emergency department, treatment typically includes:³

• IV fluids to prevent dehydration and help the kidneys flush alcohol
• Supplemental oxygen if breathing is compromised
• Glucose via IV to prevent dangerously low blood sugar
• Thiamine (vitamin B1) to prevent neurological damage
• Close monitoring of breathing, heart rate, temperature, and blood alcohol levels
• Intubation in severe cases where the person cannot breathe on their own

Most people who receive prompt medical care recover fully. The danger lies in delays.

Who is most at risk?

Alcohol poisoning can happen to anyone, but certain groups face higher risk:¹

• College students — binge drinking culture and social pressure around drinking games
• Middle-aged adults — CDC data shows this group accounts for the majority of alcohol poisoning deaths
• People with lower body weight — less body mass means higher BAC from the same amount of alcohol
• People who mix alcohol with other drugs — opioids, benzodiazepines, and sleep aids all suppress breathing and compound the risk
• People who drink on an empty stomach — food slows alcohol absorption, so drinking without eating accelerates intoxication

Prevention

The most effective prevention strategies include pacing drinks to no more than one per hour, alternating alcoholic drinks with water, eating before and during drinking, and never leaving a visibly intoxicated person alone. For anyone who feels their drinking is becoming difficult to control, the NIAAA offers free support resources at niaaa.nih.gov.¹