Management of Chronic Allergic Rhinitis Unresponsive to Loratadine

Assessment and Treatment Recommendations

The American Academy of Allergy, Asthma, and Immunology recommends intranasal corticosteroids as the most effective first-line treatment for chronic allergic rhinitis unresponsive to oral loratadine, to address nasal congestion, pain, and associated headache symptoms 1, 2
The American Academy of Otolaryngology-Head and Neck Surgery suggests that intranasal corticosteroids are significantly more effective than oral antihistamines for all nasal symptoms, including nasal congestion 5
The onset of action of intranasal corticosteroids occurs within 12 hours and as early as 3-4 hours in some patients, though full benefit may take several days to develop 1
Consider a short-term (3-day maximum) intranasal decongestant to ensure a patent nasal airway when initiating intranasal corticosteroid therapy, with caution about the risk of rhinitis medicamentosa with prolonged use 3
Combination therapy with loratadine 10mg daily may provide additive benefit for some patients 1, 6

Regular daily use of intranasal corticosteroids is advised for maximum effectiveness, rather than as-needed use 1
Avoidance of strong odors and other triggers that may exacerbate symptoms is recommended 4, 3
Evaluate response to therapy after 2-4 weeks, and assess for potential side effects of intranasal corticosteroids including nasal dryness, burning, stinging, sneezing, headache, and epistaxis 5

If symptoms persist despite optimal therapy, consider referral to an allergist/immunologist 4
A short course (5-7 days) of oral corticosteroids may be considered for very severe or intractable rhinitis 7, 4