Allergic rhinitis (AR) is a prevalent disease with great morbidity and signifi cant societal and economic burden. Intranasal corticosteroids are recommended as fi rst-line therapy for patients with moderate-to-severe disease, especially when nasal congestion is a major component of symptoms. To compare the effi cacy and safety profi le of different available intranasal corticosteroids for the treatment of AR, it is important to understand their different structures and pharmacokinetic and pharmacodynamic properties. Knowledge of these drugs has increased tremendously over the last decade. Studies have elucidated mechanisms of action, pharmacologic properties, and the clinical impact of these drugs in allergic respiratory diseases. Although the existing intranasal corticosteroids are already highly effi cient, the introduction of further improved formulations with a better effi cacy/ safety profi le is always desired. Fluticasone furoate nasal spray is a new topical corticosteroid, with enhanced-affi nity and a unique side-actuated delivery device. As it has high topical potency and low potential for systemic effects, it is a good candidate for rhinitis treatment.