Julianna FriskIt happens more often than people admit. You’re tired, you rinse your mouth quickly, and a small amount of Listerine goes down your throat. That’s usually when the question hits: is it actually safe to swallow Listerine?
The bottle clearly says it’s not meant to be ingested, yet accidental swallowing is fairly common. Similar to swallowing a bit of toothpaste or gum, it’s usually unintentional. Still, there’s a lot of confusion online about whether Listerine is harmless or genuinely dangerous if swallowed.
The Truth About Swallowing Listerine
Listerine has been used for decades as a mouthwash to help reduce bacteria, freshen breath, and support oral hygiene. When used as directed, it’s generally considered safe for adults.
The problem starts when people confuse using Listerine with consuming it.
Recently, social media has amplified concerns about Listerine, especially its alcohol content. Some videos show dentists discouraging its use altogether, while others exaggerate its risks. As a result, many people are left unsure whether a small accidental swallow is something to worry about.
Alcohol Content in Listerine
One of the main reasons Listerine raises concern is alcohol. Depending on the formula, traditional Listerine contains around 21% to 27% alcohol.
That’s not enough to cause intoxication from normal mouth rinsing, but it does mean Listerine isn’t something you should be drinking. Swallowing a small amount while rinsing is unlikely to cause harm, but drinking larger quantities could irritate the stomach or cause more serious symptoms.
When used properly, swished for about 30 seconds and spit out, the amount accidentally swallowed is usually minimal. For most adults, this does not pose a health risk.
If alcohol is a concern for you, Listerine does offer alcohol-free versions, which are often better tolerated by people with sensitive gums or dry mouth. Even so, alcohol-free mouthwash still isn’t meant to be swallowed.
What Happens If You Swallow Listerine?
Accidentally swallowing a small amount of Listerine usually isn’t dangerous. In most cases, nothing serious happens.
However, swallowing a large amount, especially intentionally or in children,can cause symptoms. These may include:
- nausea
- vomiting
- stomach pain
- dizziness
If someone consumes a significant amount or feels unwell afterward, medical advice should be sought.
For mild discomfort, drinking water can help dilute the mouthwash and ease irritation. Some people find warm tea soothing for the stomach. Avoid alcohol or acidic drinks until symptoms pass.
When Swallowing Listerine Becomes a Problem
While small accidental ingestion is usually harmless, children and pets are at higher risk. Their bodies process alcohol and other ingredients differently, and even moderate amounts can be harmful.
Always store mouthwash out of reach and never leave the bottle open or unattended. Even with safety caps, accidents can happen.
Should You Worry?
Swallowing a small amount of Listerine by accident is unlikely to harm a healthy adult. There’s no need to panic if it happens occasionally during rinsing.
That said, Listerine is not safe to drink, and swallowing large amounts, especially by children, can lead to health problems. Use it as directed, store it safely, and choose an alcohol-free option if you have sensitivities.
This article is for informational purposes only and does not replace medical advice. If you or someone else experiences concerning symptoms after ingesting Listerine, contact a healthcare professional promptly.
Julianna Frisk
