Aerius is a prescription antihistamine medication containing 5mg Desloratadine in film-coated tablet form. Manufactured by MSD, it offers long-acting, non-sedating relief from allergy symptoms with a convenient once-daily dosing schedule. Each pack contains 30 tablets. The active ingredient Desloratadine belongs to a class of medications called antihistamines that help relieve allergy symptoms. The tablets are film-coated for easy swallowing. As indicated on the packaging, this is a long-acting formula that provides 24-hour relief while being non-sedating, allowing patients to go about their daily activities. The medication is taken once daily as prescribed by a healthcare provider.