Aerius is a prescription antiallergic medication containing 5mg Desloratadine in film-coated tablet form. Manufactured by MSD, this once-daily, long-acting, non-sedating antihistamine comes in a pack of 30 tablets designed to provide relief from allergy symptoms. The active ingredient Desloratadine is a long-acting antihistamine that helps relieve allergy symptoms like sneezing, runny nose, and itchy eyes without causing drowsiness. Each film-coated tablet contains 5mg of Desloratadine and should be taken once daily as prescribed. The medication is manufactured by MSD (Merck Sharp & Dohme) and comes in a distinctive blue and white packaging. This is a prescription-only medication that should be used under medical supervision.