Allergus contains desloratadine which is an antihistamine. Allergus is an antiallergy medicine that does not make you drowsy. It helps control your allergic reaction and its symptoms. When Allergus Should Be Used Allergus relieves symptoms associated with allergic rhinitis (inflammation of the nasal passages caused by an allergy, for example, hay fever or allergy to … Continue reading Allergus 5 mg film-coated tablets- Desloratadine