A nose spray with nitric oxide quickly kills over 99.9% of the COVID-19 virus and its variants in lab tests, working in as little as 30 seconds.

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Against

Evidence from Studies

Supporting (1)

3

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Broad-Spectrum Virucidal Activity of Nitric Oxide Nasal Spray (NONS) Against SARS-CoV-2 Variants and Major Respiratory Viruses

Cross-Sectional Study

In Vitro

2026 Jan 9

The study shows that the nitric oxide nasal spray quickly kills the COVID-19 virus and its variants in lab tests, just like the claim says.

Contradicting (0)

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No contradicting evidence found

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According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Broad-Spectrum Virucidal Activity of Nitric Oxide Nasal Spray (NONS) Against SARS-CoV-2 Variants and Major Respiratory Viruses

Score: 3

DOI: 10.3390/v18010091

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A nose spray with nitric oxide might quickly lower the amount of COVID-19 virus in your body, cutting it by 95% in one day and 99% in three days for people with mild symptoms.

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A nose spray with nitric oxide was tested on adults who had mild COVID-19. The study found that no one had any serious side effects from using the spray for 9 days.

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