PHARMACEUTICAL DRY POWDER COMPOSITION AND METHODS FOR TREATING RESPIRATORY TRACT INFECTIONS

The present invention provides a pharmaceutical dry powder composition for use in treating, preventing and/or ameliorating viral infection in airways of a mammal, such as a human subject, said composition comprising micronized sodium salt as the main component and primary therapeutic agent. The present invention further provides a pharmaceutical composition for use in treating and/or ameliorating cough. The subject to be treated with the pharmaceutical composition may be infected with SARS-CoV-2 and/or diagnosed with COVID-19 infection. The pharmaceutical composition is administered by dry powder inhalation.