Abstract: The present invention relates to a method and compounds of Formula (1) and/or (2) or their pharmaceutically acceptable inorganic or organic salt thereof, and their compositions for treating respiratory conditions including post viral/bacterial infections, acute/chronic bronchitis, COPD, cystic fibrosis, and inflammatory conditions. It has been found by the applicants that the compounds of Formula (1) and/or (2) or their pharmaceutically acceptable inorganic or organic salt thereof could speed up the recovery of the viability of damaged respiratory tract cells by restoring sialylglyco-conjugates on their surface.