Is Swallowing Mouthwash Dangerous? Risks and Safety

A small amount of mouthwash ingestion may be possible?

Hello Doctor, I usually rinse my mouth with BMW mouthwash and then rinse with water afterward.
Just now, I forgot to rinse with water after spitting it out and went to drink a glass of water right after washing my face.
I just realized that this might be equivalent to swallowing the mouthwash since the bottle states that it is not for consumption.
After drinking the water, I felt a bit of a bitter taste in my mouth, although I might have felt it before but not as strongly.
I also suddenly felt a tightness in my chest, but my sister said it was fine because she has taken a sip before...
I think it might just be psychological.
I'm not sure if this could pose any danger to my body, even though I didn't directly swallow it; I don't know if that counts as consumption.
I'm very worried about whether this could harm my esophagus or gastrointestinal tract, or if the amount was so small that it wouldn't matter.
I hope you can help me with this.
Thank you.

Mingming, 20~29 year old female. Ask Date: 2020/05/11

Dr. Xiao Yongxun reply Family Medicine

Dear Miss Mingming,
1.
The ingredients of BMW Mouthwash® are Chlorhexidine Gluconate and alcohol; they can kill bacteria and inhibit bacterial growth.
Theoretically, ingesting a small amount of this type of mouthwash should not lead to severe poisoning; there are no related case reports in clinical practice.
If you are very concerned, it is advisable to contact the manufacturer directly for further consultation.
2.
Of course, if you experience any burning sensation, stinging, or discomfort in your gastrointestinal tract, you should seek necessary treatment at the emergency room as soon as possible.

Reply Date: 2020/05/11

More Info

Swallowing mouthwash can indeed pose certain risks, depending on the ingredients in the mouthwash and the amount ingested. Most commercial mouthwashes contain active ingredients such as alcohol, chlorhexidine, or cetylpyridinium chloride, which are effective for oral hygiene but can be harmful if swallowed in significant quantities.

When you accidentally ingest mouthwash, the primary concerns revolve around the potential toxicity of its ingredients. For instance, many mouthwashes contain alcohol, which can lead to alcohol poisoning if consumed in large amounts. Symptoms of alcohol poisoning may include confusion, vomiting, seizures, slow or irregular breathing, and hypothermia. However, the amount of mouthwash typically used for rinsing is generally small, and swallowing a small quantity is unlikely to cause severe harm.

In your case, since you mentioned that you rinsed your mouth with the mouthwash and then drank water afterward, the amount of mouthwash that may have been ingested is likely minimal. The bitter taste you experienced could be due to the residual mouthwash in your mouth, which is not uncommon after rinsing. The sensation of chest tightness you felt could be attributed to anxiety or a psychosomatic response, especially if you are feeling worried about the situation.

It's important to note that swallowing mouthwash occasionally does not typically lead to serious health issues, especially if it is a small amount. However, if you experience persistent symptoms such as nausea, vomiting, abdominal pain, or any unusual reactions, it would be wise to seek medical attention. Additionally, if you have any underlying health conditions or are taking medications, it’s best to consult with a healthcare professional for personalized advice.

In terms of safety, it’s crucial to follow the instructions on the mouthwash label, which usually advises against swallowing the product. To minimize risks in the future, consider the following precautions:
1. Use Mouthwash as Directed: Always follow the manufacturer's instructions for use. Rinse for the recommended time and avoid swallowing any of the product.

2. Rinse Thoroughly: After using mouthwash, rinse your mouth with water to help remove any residual product, especially if you are concerned about swallowing it.

3. Monitor Symptoms: If you ever accidentally ingest a significant amount of mouthwash or experience adverse symptoms, contact a healthcare provider or poison control center for guidance.

4. Educate Yourself: Understanding the ingredients in your mouthwash can help you make informed choices about oral hygiene products. If you have concerns about specific ingredients, consider discussing alternatives with your dentist or healthcare provider.

In summary, while swallowing a small amount of mouthwash is generally not dangerous, it’s essential to be cautious and aware of the potential risks associated with its ingredients. If you have ongoing concerns or experience any troubling symptoms, don’t hesitate to reach out to a healthcare professional for further evaluation and peace of mind.

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