Aerius is a long-acting antiallergic medication containing 5mg Desloratadine in film-coated tablet form. Manufactured by Schering-Plough, this once-daily non-sedating formula comes in a pack of 30 tablets. This medication is taken once daily and is designed to provide long-lasting allergy relief without causing drowsiness. The tablets are film-coated for easy swallowing. As with all medications, this should be taken under medical supervision and according to prescribed dosage.