Is Swallowing Listerine Dangerous? Understanding the Risks

Several concerns have been raised regarding the potential dangers of accidentally swallowing Listerine, a popular mouthwash. This article aims to clarify these concerns, provide health advisories, and detail the risks associated with ingesting Listerine.

Understanding Listerine and Its Composition

For those who have swallowed a small amount of Listerine, the news may come as a relief to know that while it might cause mild nausea or diarrhea, it is generally not dangerous. The worst-case scenario involved consuming a large quantity, which could lead to severe health complications, such as a need for mechanical ventilation.

Though Listerine is primarily designed for oral hygiene and is toxic when swallowed, it is still dangerous due to its high alcohol content. It is about 27 percent ethanol, making it around twice as strong as an alcoholic beverage like wine. This concentration makes it highly unsuitable for consumption, and can have severe consequences if ingested in higher quantities.

The Consequences of Ingestion

Extreme cases of Listerine ingestion have been documented where individuals have accidentally or deliberately swilled large volumes, leading to severe health issues. One patient, while at the mall, accidentally drank an entire bottle, necessitating ventilation for several hours and leading to her collapsing. The severity of the situation highlights the potential dangers of ingesting Listerine.

Several studies and reports have noted the high alcohol content in various mouthwashes, which ranges from around 14% to 27%. Key examples include:

Listerine: 27 percent ethanol Scope: 18.9 alcohol Cepacol: 14 alcohol

These products are not manufactured for drinking, but rather for oral care. In fact, they contain ethyl alcohol, but are termed 'nonbeverage ethanol' (NBE). This designation highlights that these products are not suitable for consumption.

The Use of Listerine as a Substitute for Alcohol

Some individuals may resort to drinking Listerine as a disguised method of consuming alcohol, a practice known as 'mouthwash abuse.' This behavior is not only dangerous but illegal and can lead to serious health complications, including the onset of metabolic acidosis due to the ingredients thymol and methyl salicylate.

The risk of triggering a positive Breathalyzer test following the use of such mouthwashes is a significant concern. Ethanol in mouthwashes can remain detectable for up to 20 minutes after use, which could potentially affect legal and workplace alcohol screening tests.

Health Advisories and Prevention

To prevent accidental or deliberate ingestion of Listerine, it is crucial to keep it out of reach of children and out of sight of individuals struggling with alcoholism who might use it to bypass abstinence. Regular usage of Listerine for its intended purpose can reduce the risk of such incidents.

For those who have accidentally ingested a small amount, it is advisable to refrain from any further mouthwash use and observe for any adverse reactions. If symptoms persist or worsen, immediate medical attention should be sought.

Conclusion

While swallowing Listerine may not be life-threatening in small quantities, it is crucial to be aware of the potential dangers associated with higher concentrations or repeated ingestion. Understanding and respecting the alcohol content and proper usage of Listerine can help mitigate these risks. Always prioritize safe and responsible use of such products.