Alcohol poisoning shows up as a specific set of warning signs that go well beyond being “really drunk.” The clearest red flags are slow or irregular breathing, unresponsiveness, vomiting while semiconscious, and skin that looks blue, gray, or pale. If someone has any combination of these signs, they need emergency help immediately, because alcohol poisoning can stop breathing and cause brain damage within minutes.
The Key Signs to Watch For
The symptoms of alcohol poisoning overlap with being very intoxicated, which is exactly what makes it dangerous. People often assume someone just needs to “sleep it off” when their body is actually shutting down. Here’s what separates alcohol poisoning from heavy drunkenness:
- Slow breathing: fewer than eight breaths per minute. Count for 30 seconds and double it. Normal breathing at rest is 12 to 20 breaths per minute, so anything noticeably slow is a warning sign.
- Irregular breathing: gaps of 10 seconds or more between breaths, even if the person seems to be sleeping.
- Vomiting while unconscious or semiconscious: alcohol suppresses the gag reflex, so a person can vomit and choke without waking up.
- Blue, gray, or pale skin: this signals the body isn’t getting enough oxygen. On darker skin tones, check the lips, gums, and fingernail beds for a bluish or grayish tint.
- Low body temperature: the person feels cold or clammy to the touch. Alcohol widens blood vessels, which causes the body to lose heat rapidly.
- Unresponsiveness: the person can’t be woken by shouting, shaking, or pinching the skin on the back of their hand.
- Seizures: caused by dangerously low blood sugar or the toxic effects of alcohol on the brain.
You don’t need to see all of these at once. Even one or two, especially slow breathing or unresponsiveness combined with vomiting, is enough to call for emergency help.
How It Differs From Being Very Drunk
A very drunk person can still talk (even if slurred), respond to their name, and walk with help. They might be clumsy, loud, or emotional, but they’re conscious and reactive. Alcohol poisoning crosses a line: the person loses the ability to respond to their environment. Their protective reflexes, like gagging or coughing, stop working reliably.
Blood alcohol concentration gives a rough picture of where that line sits. At around 0.30% to 0.40%, most people lose consciousness and are at serious risk of alcohol poisoning. Above 0.40%, the risk of coma and death from respiratory failure is high. For context, the legal driving limit in most of the U.S. is 0.08%, so alcohol poisoning territory is roughly four to five times that level. But individual tolerance varies, and smaller or less experienced drinkers can reach dangerous levels with far fewer drinks than you’d expect.
One especially dangerous scenario is when someone passes out and their blood alcohol is still rising. Alcohol in the stomach continues to absorb into the bloodstream after a person stops drinking. Someone who seems “just passed out” can deteriorate quickly over the next 30 to 60 minutes.
What to Do While Waiting for Help
If you suspect alcohol poisoning, call emergency services first. Then focus on keeping the person’s airway clear. The biggest immediate threat is choking on vomit.
Roll the person onto their side into what’s called the recovery position. With them lying on their back, kneel beside them and place the arm closest to you straight out at a right angle, palm facing up. Take their other arm and fold it so the back of their hand rests against the cheek nearest to you. Then bend the far knee to a right angle and carefully pull it toward you to roll them onto their side. Their head should rest on their folded hand, keeping the mouth angled downward so any vomit drains out instead of blocking the airway. Gently tilt the head back slightly to keep the airway open.
Stay with them. Monitor their breathing. If it slows below eight breaths per minute or stops, tell the 911 dispatcher immediately.
What Not to Do
Cold showers, black coffee, and walking someone around do not reverse alcohol poisoning. The National Institute on Alcohol Abuse and Alcoholism warns that these remedies can make things worse. Cold water can cause hypothermia when the body is already struggling to regulate temperature. Walking someone who can barely stand risks falls and head injuries. Coffee does nothing to speed up the liver’s processing of alcohol.
Never leave a person alone to “sleep it off” on their back. Never try to make them vomit, since the suppressed gag reflex makes choking a real possibility. And don’t assume they’ll be fine because they’re still breathing right now. Blood alcohol levels can keep climbing for up to 40 minutes after the last drink.
Why It’s a Medical Emergency
Alcohol is a central nervous system depressant. In high enough concentrations, it slows the brain regions that control breathing, heart rate, and temperature regulation. When breathing becomes too slow or stops, the brain begins losing oxygen. Consciousness is lost within about 15 seconds of oxygen deprivation, and permanent brain damage can start after roughly four minutes without adequate oxygen flow. That narrow window is why speed matters.
In the emergency department, doctors check blood alcohol levels along with blood sugar and other markers to assess how severe the poisoning is and whether the liver and other organs are coping. Treatment focuses on supporting breathing and preventing complications like dehydration, dangerously low blood sugar, or aspiration pneumonia from inhaled vomit.
Who’s at Higher Risk
Binge drinking is the most common cause of alcohol poisoning, but certain factors lower the threshold. Body weight matters: a 120-pound person reaches dangerous blood alcohol levels much faster than a 200-pound person drinking the same amount. People who haven’t eaten recently absorb alcohol faster. Those taking medications that depress the nervous system, like sleep aids, anti-anxiety drugs, or opioid painkillers, face compounded effects even at lower drinking levels.
Young adults and college-age drinkers are disproportionately affected, partly because of drinking games and social pressure to consume large quantities quickly. But alcohol poisoning occurs across all age groups. Older adults metabolize alcohol more slowly and are more likely to be on medications that interact with it.
If you’re reading this because you’re worried about someone right now, the simplest rule is: if you can’t wake them up, or their breathing seems off, call for help. You will never be wrong for making that call.