Inhaled corticosteroids for allergic rhinitis
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Inhaled Corticosteroids as First-Line Therapy for Allergic Rhinitis
Current clinical guidelines and multiple studies consistently recommend intranasal corticosteroids (INCS) as the first-line pharmacological treatment for moderate to severe allergic rhinitis in both adults and children, due to their superior efficacy in controlling nasal symptoms compared to other available therapies such as oral antihistamines 1245+2 MORE. INCS are effective in reducing symptoms like nasal congestion, sneezing, rhinorrhea, and nasal itching, and they also improve quality of life for patients with allergic rhinitis 456.
Comparative Efficacy of Intranasal Corticosteroids and Other Treatments
Systematic reviews and meta-analyses show that INCS outperform oral antihistamines in improving total nasal symptom scores and quality of life, with no significant difference in relief of ocular symptoms 46. Regular use of INCS is more effective than as-needed use for symptom control, but as-needed INCS still provides better relief than as-needed antihistamines or placebo . Combination sprays containing both a corticosteroid and an antihistamine offer additional therapeutic options, but INCS alone remain highly effective 16.
Safety and Acceptability of Intranasal Corticosteroids
INCS are generally well-tolerated and have a favorable safety profile, especially with newer agents such as mometasone furoate, beclomethasone dipropionate, and budesonide, which have minimal systemic absorption and reduced risk of side effects 2510. While rare reports of decreased bone growth in children have been noted with certain corticosteroids, the overall evidence supports their safety when used as directed 210. The acceptability of INCS is comparable to placebo, with low dropout rates in clinical studies .
Comparative Efficacy Among Different Intranasal Corticosteroids
No single INCS has been shown to be universally superior, but some differences exist in efficacy rankings for specific types of allergic rhinitis. For seasonal allergic rhinitis, mometasone furoate and fluticasone furoate are among the most effective, while budesonide ranks highest for perennial allergic rhinitis 510. All licensed INCS are effective, and the choice may depend on patient preference, dosing frequency, and side effect profile 1510.
Use in Pediatric Allergic Rhinitis
INCS are also the preferred treatment for children with allergic rhinitis, offering effective symptom relief with a good safety profile when newer agents are used 210. Evidence supports their use as first-line therapy over oral antihistamines in pediatric populations, with once-daily dosing options available to improve adherence and minimize potential systemic effects 210.
Management of Allergic Rhinitis with Comorbid Asthma
Treating allergic rhinitis with INCS can also benefit patients with coexisting asthma, improving pulmonary function and overall airway inflammation 38. However, combined treatment does not necessarily reduce the need for corticosteroid use in either the upper or lower airways, and further research is needed to optimize management in patients with both conditions 38.
Conclusion
Inhaled (intranasal) corticosteroids are the cornerstone of pharmacological management for allergic rhinitis, providing superior symptom control and quality of life improvements compared to other therapies. They are safe and effective for both adults and children, with a range of options available to tailor treatment to individual needs. Regular use is recommended for optimal results, and INCS remain the first-line therapy in current clinical practice 1245+3 MORE.
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