A study claims that mouthwash can kill the Corona virus within 30 seconds of exposure in the laboratory

A scientific study has found that mouthwash can eliminate the Corona virus within 30 seconds of exposure to it in the laboratory.

The initial finding comes before a clinical trial on whether the use of over-the-counter mouthwash has the potential to reduce levels of Covid-19 in a patient’s saliva.

The Cardiff University report said mouthwashes containing at least 0.07% ceteridinium chloride (CPC) showed “promising signs” of an ability to fight the virus.

The report – the lethal effectiveness of mouth rinse ingredients against SARS-CoV-2 in the laboratory – has not been reviewed – but it does support another study published last week that found CPC-based mouthwashes to be effective in reducing the viral load of Covid.

The last test was performed by scientists in the university laboratory and mimicked a person’s nasopharyngeal passage / throat conditions using mouthwash brands including Dentyl.

A clinical trial will then examine how effective the mouthwash is in reducing the viral load in the saliva of Covid-19 patients at University Hospital of Wales in Cardiff, with results due to be published in the first part of 2021.

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Dentyl is the only mouthwash brand in the UK to participate in the 12-week clinical trial led by Professor David Thomas of Cardiff University with the title: ‘Measuring the Activity of Anti-Viral Mouthwash Against Covid-19’.

Dr. Thomas told the Palestinian News Agency: “While these mouthwashes eliminate the virus very effectively in the laboratory, we need to know whether they work in patients, and this is the goal of our ongoing clinical study.”

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“It is important to note that the study will not provide us with any direct evidence of virus transmission between patients, which requires a different type of study on a much larger scale.

“However, an ongoing clinical study will show us how long any effects last, after giving one mouthwash to Covid-19 patients.”

“Although this in vitro study is very encouraging and a positive step, there is now a need for more clinical research.”

“We need to understand whether the effect of over-the-counter mouthwashes on the laboratory-investigated Covid-19 virus can be reproduced in patients, and we look forward to completing our clinical trial in early 2021.”


Dr. Nick Claydon, a periodontist, said he believed the research was “extremely valuable”.

“If these positive results are reflected in the Cardiff University clinical trial, then a CPC-based mouthwash like Dentyl used in the study in the laboratory could become an important addition to people’s routine, along with hand washing, physical distancing and wearing masks, both now and in the future,” he said. .

Dr Richard Stanton, lead author of the study and reader in virology at Cardiff University, said: “It is worth noting that corona viruses are more susceptible to disruption than many other viruses and bacteria due to the presence of a viral lipid envelope. Studies have been conducted on whether the approach can inactivate the virus in me. Human beings are continuous.

“In the human throat, the virus is constantly being produced, so if there is an effect, it will be important to know how long it takes and whether this can help reduce transmission of infection, for example in dental examinations and mouth / throat examinations by GPs, Or short-term contacts with vulnerable patients or other individuals.

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“People should continue to follow the preventive measures issued by the UK government, including washing hands frequently and maintaining social distance. We always encourage people to use mouthwashes safely and according to the manufacturer’s instructions.”

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