Can Mouthwash Get You Drunk? Health Risks and Dangers

TL;DR: Yes, mouthwash can absolutely get you drunk — some brands pack as much alcohol as a shot of gin. But this isn’t just a different way to catch a buzz. The added chemicals in mouthwash make the “high” deadly, turning a routine bathroom product into a fast track to poisoning, organ damage, and overdose.

What Makes Mouthwash Alcoholic?

Mouthwash often contains ethanol (ethyl alcohol) — the same type of alcohol found in beer, wine, and liquor. But there’s a key difference: concentration. While a standard beer sits at about 5% alcohol by volume (ABV) and wine at 12%, many mouthwashes range from 14% to 27% ABV. Original formula Listerine, for example, is roughly 26.9% alcohol, making it 54 proof source. That’s stronger than most spirits served at a bar.

The alcohol isn’t there for a party trick. Ethanol acts as a solvent for flavor oils, delivers that familiar “burn” that people associate with cleanliness, and helps kill bacteria in your mouth. But it’s never meant to be swallowed.

Ethanol vs. Isopropyl Alcohol: Not All Alcohol Is Drinkable

While most mouthwashes use ethanol, some formulas contain isopropyl alcohol or even small traces of methyl alcohol. These are far more toxic.

Alcohol Type	Common Source	Effects If Swallowed
Ethanol (ethyl alcohol)	Alcoholic drinks, most mouthwashes	Intoxication, vomiting, alcohol poisoning
Isopropyl alcohol	Rubbing alcohol, some mouthwashes	Rapid drunkenness, severe abdominal pain, metabolic acidosis, coma
Methyl alcohol (methanol)	Industrial solvents, rarely in contaminated products	Blindness, permanent nerve damage, death even in small amounts

The bottom line: if a mouthwash contains isopropyl alcohol instead of ethanol, every sip moves you closer to a life-threatening metabolic crisis, not a “simple” drunk.

Can You Actually Get Drunk from Mouthwash?

Yes — and the results can hit faster and harder than you expect. Ethanol in mouthwash is absorbed directly through the tissues in your mouth and stomach. Because you’re not mixing it with food and you’re probably drinking it quickly, your blood alcohol concentration (BAC) can spike to dangerous levels within minutes.

The National Capital Poison Center puts it bluntly: “Yes, mouthwash can get you drunk, especially if you drink mouthwash containing around 27% ethanol” source. That’s a higher concentration than beer or wine. The drunkenness is real, but so is the poisoning.

How Much Mouthwash Would It Take?

This is not a recipe — it’s a warning. To understand the risk, here’s a rough comparison:

• A standard shot of whiskey (1.5 oz, 40% ABV) delivers 0.6 oz of pure ethanol.
• A mouthwash containing 20% ABV delivers 0.3 oz of pure ethanol in the same 1.5 oz swig.

That means a small 12-ounce bottle of 20% ABV mouthwash contains the alcohol equivalent of about 6 shots of hard liquor. Drinking half the bottle can push an average-sized person well past the legal intoxication limit — and into overdose territory.

The calculation changes with body weight, tolerance, and whether the person vomits (which is very likely). But the point remains: mouthwash packs a staggering amount of alcohol in a form that’s easy to consume quickly.

Why People Resort to Drinking Mouthwash (And Why It’s Never Worth It)

For someone with alcohol dependence, mouthwash becomes a hidden, cheap, and accessible substitute. It’s sold at every drugstore without an ID check, it doesn’t smell like a typical drink, and it can be used to mask withdrawal symptoms. This behavior, sometimes called “surrogate alcohol” consumption, appears in hospitals, shelters, prisons, and any place where conventional alcohol is locked away.

Common warning signs of mouthwash abuse include:

• Hidden bottles in cars, bathrooms, or closets — far from the kitchen
• Overpowering mint or medicinal breath even when no one is brushing their teeth
• Morning dizziness, slurred speech, or unexplained sedation
• Frequent empty mouthwash bottles in the trash
• A sudden preference for using mouthwash multiple times an hour, often alone

This is not a harmless coping strategy. It’s a medical emergency waiting to happen.

The Immediate Health Risks of Getting Drunk on Mouthwash

The danger goes far beyond feeling dizzy. Drinking mouthwash causes:

• Severe stomach pain, nausea, and vomiting — sometimes bloody
• Throat and esophageal burns from high alcohol content and essential oils
• Dangerously rapid intoxication, leading to blackouts, confusion, and loss of consciousness
• Aspiration pneumonia — when an unconscious person vomits and breathes the irritating liquid into their lungs

How Mouthwash Overdose Differs from a Normal Alcohol Overdose

Regular alcohol poisoning is life-threatening on its own. But mouthwash adds a second layer of poison through its non-ethanol ingredients. Compounds like methyl salicylate (oil of wintergreen), thymol, eucalyptol, and hydrogen peroxide can trigger:

• Metabolic acidosis — a dangerous blood chemistry imbalance
• Seizures even at alcohol doses that wouldn’t normally cause them
• Acute kidney injury
• Liver damage beyond what ethanol alone would cause

One risk assessment analysis of 30 mouthwash brands found that while ethanol is the primary toxin, extreme consumption can push methyl salicylate intake to 17 times the acceptable daily limit, contributing to acidosis source. This is why mouthwash overdose patients often crash much faster than typical alcohol-poisoning patients.

Recognizing the Warning Signs of a Mouthwash Overdose (When to Call 911)

If you suspect someone has swallowed a large amount of mouthwash, act immediately. According to the MedlinePlus mouthwash overdose entry source, these are red-flag symptoms:

Call 911 or Poison Control (1-800-222-1222) if the person has:

• Vomiting with blood (may look like coffee grounds)
• Extreme confusion or hallucinations
• Seizures
• Slow, irregular, or very shallow breathing
• Loss of consciousness or unresponsiveness
• Bluish or pale lips and fingertips
• Dangerously low body temperature

Do not try to make them vomit or “sleep it off.” This is not a standard hangover — it’s a multi-toxin overdose.

What Happens to Your Body Long-Term If You Keep Drinking Mouthwash?

Chronic mouthwash abuse hits every system. The ethanol alone fuels addiction, liver cirrhosis, and brain damage. Essential oils and chemical additives add daily injuries: chronic gastritis, esophageal erosion, malnutrition from constant stomach upset, and cognitive decline. People who replace meals with mouthwash calories often develop severe vitamin deficiencies, including thiamine (B1) deficiency, which can lead to irreversible brain damage known as Wernicke-Korsakoff syndrome.

If this describes you or someone close to you, know that recovery is possible. Medically supervised detox is critical because mouthwash withdrawal is just as dangerous as any alcohol withdrawal — and the hidden ingredients can cause additional complications.

Where to Find Help for Mouthwash Addiction (Safer Alternatives)

You don’t have to figure this out alone. Here are trusted places to start:

• Poison Control Centers (1-800-222-1222) — 24/7, free, confidential
• SAMHSA National Helpline (1-800-662-HELP) — for alcohol use disorder resources
• Alcoholics Anonymous (AA) — both in-person and online meetings
• Your doctor or dentist — can prescribe alcohol‑free oral rinses and discuss recovery options

Consider switching to an alcohol‑free mouthwash: many contain cetylpyridinium chloride or chlorhexidine and are just as effective for gum health without the abusable alcohol. This simple change removes a trigger and protects everyone in the household. For those with already sensitive gums or a history of mouthwash abuse, upgrading to a gentle yet effective electric toothbrush like the RANVOO AirJet X5 can further safeguard oral health. Its patented bubble cleaning technology minimizes gum irritation, making it a safe choice for recovering mouths — because healthy teeth and gums shouldn’t come at the cost of harsh chemicals or physical discomfort.

The Bottom Line: Mouthwash Is for Rinsing, Not Drinking

Mouthwash can get you drunk — but the “high” is a medical emergency. The alcohol percentages are no joke, and the other ingredients can cause seizures, organ failure, and fatal blood chemistry changes that regular alcohol simply won’t.

If you or someone you know is drinking mouthwash to get drunk, this is a sign of severe alcohol use disorder and a poisoning risk that needs immediate professional help. No amount of minty freshness is worth a trip to the ICU — or worse.