The Brief

SAARBRÜCKEN, Germany - New breakthrough research suggests that a common, over-the-counter nasal spray used to treat allergies may protect against COVID-19 and potentially other respiratory viruses.

What we know:

The study by researchers at Germany’s Universität des Saarlandes determined that azelastine nasal spray significantly reduced the risk of Covid infections.

Azelastine is sold under brand names including Astepro Allergy. The drug is also available by prescription.

How it works

Researchers said the antihistamine spray works locally, interfering, inhibiting, and suppressing the various processes in which the coronavirus enters the body – through the nasal mucosa, the tissue that lines the nasal cavity.

What they're saying:

"The nasal mucosa is the primary site of

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