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NMPA
National Medical Products Administration
PHILIPPINES
Philippines FDA
SFDA
Saudi Food and Drug Authority
1
NPRA
National Pharmaceutical Regulatory Agency
8
- A randomized clinical trial of 450 adults found that azelastine nasal spray reduced COVID-19 infections to 2.2% compared to 6.7% in the placebo group over 56 days. - The over-the-counter antihistamine spray, commonly used for seasonal allergies, also demonstrated effectiveness against other respiratory infections including rhinovirus. - Researchers suggest azelastine may work by binding to viruses in nasal mucosa or interfering with ACE2 receptors, though larger studies are needed before widespread recommendation.
