Call 911 if someone who has been drinking heavily is unconscious or semi-conscious, breathing fewer than 8 times per minute, having seizures, or vomiting while unresponsive. You do not need to wait for every warning sign to appear. A person who has passed out from alcohol can die even after they stop drinking, because alcohol continues absorbing into the bloodstream from the stomach.
Alcohol poisoning kills. It was among the leading causes of alcohol-attributable deaths in the United States between 2020 and 2021, a period that saw roughly 178,000 yearly deaths from excessive alcohol use. Knowing which symptoms cross the line from “very drunk” to “medical emergency” can be the difference between a rough morning and a fatal outcome.
The Warning Signs That Require 911
Not every sign of alcohol poisoning looks dramatic. Some are subtle, and the person experiencing them usually can’t advocate for themselves. Watch for any of the following:
- Mental confusion or stupor beyond normal intoxication, where the person can’t respond to questions or doesn’t know where they are.
- Inability to stay conscious, or being impossible to wake up.
- Vomiting, especially while unconscious or semi-conscious.
- Seizures.
- Slow breathing: fewer than 8 breaths per minute.
- Irregular breathing: gaps of 10 seconds or more between breaths.
- Slow heart rate.
- Clammy skin, bluish or pale skin color.
- Extremely low body temperature, where the person feels cold to the touch.
- No gag reflex, meaning the body can no longer protect itself from choking on vomit.
A single one of these signs is enough to call for help. The NIAAA is explicit on this point: do not wait for the person to show all the symptoms.
Why Alcohol Poisoning Is So Dangerous
At high doses, alcohol suppresses the parts of the brain that control basic survival functions like breathing, heart rate, and temperature regulation. A blood alcohol concentration (BAC) between 0.30% and 0.40% typically causes loss of consciousness and alcohol poisoning. Above 0.40%, the risk of coma and death from respiratory arrest rises sharply.
One of the most dangerous effects is the loss of the gag reflex. Normally, if something enters your airway, your body reflexively coughs or gags to clear it. Alcohol at toxic levels shuts that reflex down. If a person vomits while unconscious and their gag reflex isn’t working, they can inhale vomit into their lungs and suffocate. This is one of the most common ways alcohol poisoning kills.
Alcohol also causes blood sugar to drop, sometimes severely. That drop in blood sugar makes the body worse at maintaining its core temperature, particularly in cold environments. The combination of low blood sugar and impaired shivering means a person with alcohol poisoning can develop dangerously low body temperature even indoors on a cool night. This is why clammy, cold skin and bluish coloring are such important warning signs.
What to Do While Waiting for Help
Once you’ve called 911, your main job is keeping the person’s airway clear. If they’re unconscious or semi-conscious, place them in the recovery position: lay them on their side with their bottom arm extended out in front, tuck the back of their top hand under their cheek, and bend their top knee at a right angle to keep them from rolling. Gently tilt their head back slightly to open the airway. This position helps vomit drain out of the mouth rather than back into the throat.
Stay with them and keep monitoring their breathing. Count breaths. If breathing drops below 8 per minute or stops, tell the 911 dispatcher immediately.
Do not try to make them vomit. Do not give them coffee, food, or a cold shower. None of these speed up how fast the body processes alcohol, and several of them can make things worse. Coffee doesn’t counteract alcohol’s effects on the brain. A cold shower can cause a dangerous drop in body temperature in someone whose thermoregulation is already impaired. Forcing vomiting in someone without a functioning gag reflex can cause choking.
What Happens at the Hospital
Hospital treatment for alcohol poisoning is mostly supportive, meaning the medical team keeps you safe while your body clears the alcohol on its own. That typically includes close monitoring of breathing to prevent choking, oxygen if needed, and IV fluids to correct dehydration. Doctors often give vitamins and glucose through the IV to prevent complications from low blood sugar and nutritional deficiency, both of which alcohol depletes rapidly.
In rare cases involving accidental ingestion of methanol or isopropyl alcohol (found in some industrial products and hand sanitizers), a procedure called hemodialysis may be used to filter the toxic substance from the blood more quickly than the body could manage alone.
Hospital stays vary widely. Someone with a straightforward case who stabilizes quickly may be monitored for several hours and discharged the same day. Severe cases, particularly those involving seizures, aspiration of vomit, or extremely high BAC levels, can require time in the intensive care unit. After discharge, healthcare providers will typically recommend follow-up resources for alcohol use, including counseling and treatment programs.
Don’t Let Fear Stop You From Calling
A common reason people hesitate to call 911, especially younger adults, is fear of legal consequences. Many states have enacted Good Samaritan laws that provide legal protections for bystanders who report an overdose. These laws vary by state, but the general principle is the same: calling for help should not result in criminal charges for the caller or the person in danger. The details of your state’s law matter, but the risk of not calling is always greater than the risk of calling.
The body can only process alcohol at a fixed rate, roughly one standard drink per hour. There is no way to speed that up. If someone has consumed enough alcohol to show any of the danger signs listed above, their BAC may still be rising even after they’ve stopped drinking. Alcohol sitting in the stomach continues to absorb into the bloodstream for up to an hour or more after the last drink. This means a person can look “okay” and deteriorate rapidly 20 minutes later. When in doubt, call.