Confused and Unsteady After Heavy Drinking? 3 Signs to Go to the ER

If someone who drinks heavily becomes confused, unsteady on their feet, or develops unusual eye movements, treat it as a medical emergency: go to an emergency room or call 911 the same day, and do not wait for it to wear off. Together, these signs can point to Wernicke’s disease, a brain condition linked to low thiamine (vitamin B1). The National Institute on Alcohol Abuse and Alcoholism (NIAAA) reports that some of its symptoms can improve with prompt thiamine treatment, while delay can lead to permanent memory loss.

The short answer

Wernicke-Korsakoff (WK) syndrome is a serious brain condition that is usually associated with chronic alcohol misuse and severe alcohol use disorder. According to NIAAA, researchers estimate it may remain undiagnosed in approximately 80 percent of patients. Because its early stage, Wernicke’s disease, can improve with prompt thiamine treatment but can progress to Korsakoff’s psychosis, which is not reversible, new confusion, loss of balance, or abnormal eye movements in a person who drinks heavily should be evaluated in an emergency department the same day.

This article is about what to do and what to say, not about diagnosing anyone at home. Only a clinician can tell Wernicke’s disease apart from intoxication, a head injury, a serious infection, or alcohol withdrawal, and more than one of these can be happening at once.

The 3 signs that mean go to the ER today

NIAAA lists the symptoms of Wernicke’s disease. Three of them matter most when you are deciding what to do at home:

Confusion: The person seems disoriented, cannot follow a simple conversation, or does not seem to know where they are, and it is not clearing as the alcohol wears off.

Loss of coordination: Walking with a wide, unsteady stance, trouble standing or sitting upright, or new tremors that seem out of proportion to how much they drank.

Eye changes: Back-and-forth eye movements (called nystagmus), double vision, crossed or misaligned eyes, or drooping eyelids.

NIAAA also lists a lack of energy, low body temperature, low blood pressure, and coma. You do not need to see all three main signs. Any one of them, in a person who drinks heavily and has been eating poorly, is reason enough to be seen today rather than next week.

When to call 911 instead of driving

Call 911 rather than driving if the person is very drowsy or hard to wake, cannot stand, has a seizure, is vomiting blood or has black, tarry stools, has trouble breathing, or is in any immediate danger. For stomach bleeding specifically, see our guide to vomiting blood after drinking. This site is not an emergency service, and nothing here replaces emergency care.

Why thiamine runs low in people who drink heavily

Thiamine is a vitamin the body cannot store in large amounts, and several things that tend to happen together with heavy drinking can lower it:

Low food intake: Alcohol can take the place of meals, and appetite often fades with heavy use, so the foods that supply thiamine are missed. We explain the pattern in why people who drink heavily stop eating and in loss of appetite after drinking alcohol.

Poor absorption: NIAAA states that in people with severe alcohol use disorder, poor nutrition decreases the ability of the gut to absorb thiamine from food, which raises the chance of developing WK syndrome.

Stomach and gut problems: Nausea, vomiting, and stomach pain can make it harder to keep food down. Our pages on nausea after drinking alcohol and stomach pain after drinking cover when those symptoms need a doctor.

Skipped meals: Drinking in place of eating, day after day, is the most common way the gap builds. If that sounds familiar, skipping meals to drink and how to stop is a practical place to start.

What to do in the first hour

Stay with the person: Do not let them drive, and do not leave them alone on stairs or in a bathtub, because balance problems raise the risk of falls.

Write a three-line timeline before you leave: How much and how often they have been drinking over the past few weeks, the time of the last drink, and what they have actually eaten in the past three days. Add when the confusion, unsteadiness, or eye changes began.

Say this at triage: “This person has been drinking heavily for weeks, has barely eaten, and is now confused and unsteady. Could this be thiamine deficiency or Wernicke’s disease?” Naming it out loud takes ten seconds.

Do not give more alcohol to steady them: Stopping heavy drinking suddenly can itself cause withdrawal that is medically dangerous, so tell the staff exactly when the last drink was and let them manage it.

Bring a medication and supplement list: Include anything taken in the past week, with the bottles if you can.

Here is the inconvenient part. Emergency departments see intoxicated people all day, and confusion in a person who smells of alcohol is easy to write off as simply being drunk. The most useful thing you can hand over is a timeline showing that the symptoms do not match the amount of alcohol in the last few hours, plus the specific signs, in plain words. Clinicians still make the call, but you can make sure they have the facts.

What usually happens at the ER

Staff will usually check vital signs, look at eye movements and balance, ask about drinking and eating, and run tests to rule out other causes of confusion. Because Wernicke’s disease can be hard to confirm and delay carries a cost, clinicians may begin thiamine treatment while testing continues. The details depend on the hospital and the person, so ask the team what they are checking and what the plan is.

NIAAA notes that some symptoms, such as muscle and vision problems, are reversible with prompt thiamine treatment, while other symptoms may respond more slowly or may not be completely reversible. That is why the same-day rule matters.

Why waiting is the costly choice

NIAAA states that without treatment, WK syndrome can be disabling, produce permanent memory loss, and be life-threatening. The later stage, Korsakoff’s psychosis, can include severe and irreversible memory problems, difficulty forming new memories, making up inaccurate stories about events without meaning to deceive, hallucinations, repetitive speech or actions, and trouble with planning and decisions. Families often describe the person as “not themselves,” and that change can be the first thing they notice. If you are seeing it, it is worth a call to emergency services or a trip to the ER.

If the person refuses to go

Confusion can make it hard for someone to judge their own condition, so a refusal does not always mean they understand the risk. Stay calm and describe what you see rather than what you think of their drinking: “I am worried about your eyes and your balance, and I want it checked tonight. I will drive and stay with you.” If they are very drowsy, hard to wake, or cannot walk safely, call 911 and tell the dispatcher about the heavy drinking and the specific symptoms.

If it is not an emergency but you are worried about someone’s drinking and eating, the SAMHSA National Helpline offers free, confidential information and referrals; you can read about it at SAMHSA. You can also call us at 866-644-7911 to talk through treatment options. We are not an emergency service.

After the emergency: questions for the next appointment

Once the immediate danger has passed, the follow-up conversation matters as much as the ER visit. Bring these questions to the next appointment:

Ask about testing: “Should my vitamin levels and nutrition be checked, and which tests do you recommend?” Our guide to vitamin deficiency tests to ask for after heavy drinking lists what to raise.

Ask about restarting food safely: “How should eating be rebuilt after weeks of poor intake?” See how to restart eating safely after heavy drinking.

Ask about malnutrition screening: How doctors check for alcohol-related malnutrition explains what the exam usually involves.

Ask about the plan for the drinking: “What treatment options fit my situation, and is a medically supervised setting safer than stopping at home?” For the earlier warning stage, read early signs of wet brain in long-term heavy drinkers, and for meals, what to eat in the first 30 days of alcohol recovery.

Getting help for the drinking itself

A brain-related warning sign is often the moment a family decides that something has to change. According to the Centers for Disease Control and Prevention, excessive alcohol use has immediate and long-term health effects, and drinking less is better for your health than drinking more. Treatment works best when nutrition, medical safety, and support for the drinking are handled together. If you would like help finding an appropriate level of care, call 866-644-7911 and ask about options near you.

The short version

New confusion, poor balance, or odd eye movements in someone who drinks heavily and eats poorly is a same-day emergency evaluation, not something to sleep off. Bring a three-line timeline, say the words “thiamine deficiency” at triage, and let clinicians decide. Then use the follow-up visits to check nutrition and build a plan for the drinking.

Sources

NIAAA: Wernicke-Korsakoff Syndrome (fact sheet reviewed at source on November 5, 2026) · CDC: Alcohol Use and Your Health · SAMHSA: National Helpline

This article is for educational purposes only and is not medical advice, diagnosis, or treatment. It does not replace care from a licensed clinician. If someone may be in immediate danger, call 911.