PMID: 9438487Jan 23, 1998Paper

Efficacy and safety of loratadine plus pseudoephedrine in patients with seasonal allergic rhinitis and mild asthma

The Journal of Allergy and Clinical Immunology
J CorrenA Wanderer

Abstract

Antihistamines have been shown to have a variety of therapeutic effects in asthma. Although nasal obstruction may play an important role in modulating lower airway function, no prior trial has used a decongestant in combination with an antihistamine in patients with allergic rhinitis and concomitant asthma. We sought to determine the efficacy and safety of loratadine (5 mg) plus pseudoephedrine (120 mg) (L/P) twice daily in patients with seasonal allergic rhinitis and mild asthma. We conducted a randomized, double-blind, placebo-controlled trial of L/P in 193 subjects during the fall allergy season. Nasal and chest symptoms, albuterol use, and peak expiratory flow rates were recorded daily for 6 weeks. Spirometry was measured at baseline and after 1, 2, 4, and 6 weeks of therapy, and health-related quality of life was rated at the beginning and end of the study. Total rhinitis and asthma symptom severity scores were significantly reduced in patients receiving active therapy compared with those receiving placebo throughout the 6-week study. Peak expiratory flow rates improved significantly in patients treated with L/P during weeks 2 through 6 (peak effect [mean +/- SEM]: L/P, 26.23 +/- 4.64 L/min vs placebo, 8.52 +/- 3.53 L/min,...Continue Reading

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