Alcohol poisoning symptoms include confusion, vomiting, seizures, dangerously slow breathing, and loss of consciousness. These signs mean alcohol has reached toxic levels in the bloodstream and is shutting down the body’s basic functions. If someone shows even one or two of these symptoms after heavy drinking, it’s a medical emergency.
The Key Symptoms to Watch For
Alcohol poisoning doesn’t look like being “really drunk.” It looks like the body losing control of itself. The critical signs are:
- Mental confusion or stupor: The person can’t respond to questions, doesn’t know where they are, or seems completely unaware of what’s happening around them.
- Vomiting: Especially dangerous because alcohol suppresses the gag reflex, meaning a person can choke on their own vomit without waking up.
- Seizures: Caused by alcohol’s toxic effects on the brain and drops in blood sugar.
- Slow breathing: Fewer than eight breaths per minute.
- Irregular breathing: Gaps of 10 seconds or more between breaths.
- Slow heart rate: The heart struggles to maintain normal rhythm.
- Clammy skin: Skin that feels cold and damp to the touch.
- Blue, gray, or pale skin: Especially around the lips or fingertips, signaling the body isn’t getting enough oxygen.
- Extremely low body temperature: The person may feel cold even in a warm room.
- Inability to stay conscious or wake up: If you can’t rouse someone, this alone is reason to call for emergency help.
One symptom that often gets overlooked: the loss of the gag reflex. Normally, your body will gag and clear your airway if something blocks it. At toxic alcohol levels, that reflex stops working. This is why people die from choking on vomit during alcohol poisoning, often while “sleeping it off.”
What’s Happening Inside the Body
Alcohol is a central nervous system depressant. In small amounts, it slows your brain activity just enough to make you feel relaxed. At poisoning levels, it suppresses the parts of the brain that control breathing, heart rate, temperature regulation, and protective reflexes. Your body essentially starts losing the ability to keep itself alive without intervention.
Blood alcohol concentration (BAC) gives a rough sense of the danger zones. At a BAC of 0.30% to 0.40%, you’re likely experiencing alcohol poisoning with loss of consciousness. At 0.35%, the risk of coma begins due to compromised breathing and circulation. A BAC over 0.40% can be fatal. And above 0.45%, death from the brain’s failure to control vital functions becomes likely. These thresholds vary by person, but they illustrate how narrow the margin is between severe intoxication and a life-threatening emergency.
How to Tell It Apart From Being Very Drunk
The line between “dangerously drunk” and alcohol poisoning can feel blurry, but a few differences stand out. A very drunk person can still talk, respond to their name, and breathe normally even if they’re slurring and stumbling. Someone with alcohol poisoning often can’t be woken up, doesn’t respond when you shout their name or pinch their skin, and has visibly abnormal breathing patterns.
Skin color is another telling sign. Flushed, red skin is common with heavy drinking. Blue, gray, or very pale skin signals something far more serious: the body isn’t circulating oxygen properly. If you’re unsure whether someone is just drunk or in danger, count their breaths. Fewer than eight in a minute, or long pauses between breaths, means they need emergency help immediately.
Why “Sleeping It Off” Can Be Fatal
One of the most dangerous things you can do for someone with alcohol poisoning is assume they’ll be fine once they sleep. Blood alcohol levels can continue rising even after a person stops drinking, because alcohol in the stomach keeps being absorbed. Someone who seems okay when they lie down can slip into a much worse state over the next hour.
Other common remedies are equally useless. Coffee and caffeine do nothing to reduce blood alcohol levels or counteract poisoning. The liver processes roughly one standard drink per hour (one 12-ounce beer, one 5-ounce glass of wine, or one ounce of 100-proof liquor), and nothing speeds that up. Cold showers won’t help either. The shock of cold water can actually cause a person to lose consciousness. Walking it off has no effect on how fast alcohol leaves the body.
These aren’t just ineffective. They waste time. Alcohol poisoning is a medical emergency, and the window for preventing brain damage, organ failure, or death can be short.
What to Do While Waiting for Help
If someone is showing signs of alcohol poisoning, call emergency services first. Then focus on keeping the person as safe as possible until help arrives.
If they’re unconscious, turn them on their side. This is the single most important thing you can do, because it prevents choking if they vomit. Don’t give an unconscious person water or food. If they’re awake, have them sip water slowly to stay hydrated. Try to keep them conscious and talking. Cover them with a blanket, since alcohol poisoning drops body temperature. If the person gets confused or agitated, calmly explain what you’re doing and why.
When paramedics arrive, tell them as much as you can: roughly how much the person drank, over what time period, whether they took any other substances, and what symptoms you noticed. This information helps emergency teams act faster.
Why It’s More Dangerous Than People Think
Alcohol poisoning kills because it attacks multiple systems at once. Breathing slows or stops. Body temperature drops to dangerous lows. Blood sugar can crash, triggering seizures. The gag reflex disappears, making choking a real possibility. And because the person is often unconscious, they can’t call for help themselves.
The risks don’t end when someone “wakes up,” either. Prolonged oxygen deprivation from slowed breathing can cause lasting brain damage. Severe drops in body temperature can lead to cardiac arrest. Repeated vomiting while unconscious can cause fluid to enter the lungs. These complications are why alcohol poisoning requires professional medical treatment, not home care. In the emergency room, treatment typically involves IV fluids to prevent dehydration and doses of vitamins and glucose to head off the most serious complications.
Anyone can develop alcohol poisoning. It’s more common with binge drinking, but body weight, tolerance, how fast someone drank, whether they ate beforehand, and mixing alcohol with other substances all shift the threshold. There’s no safe formula for “how much is too much” that applies to everyone.