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Efficacy and safety of desloratadine/pseudoephedrine tablet, 2.5/120 mg two times a day, versus individual components in the treatment of patients with seasonal allergic rhinitis

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Although antihistamines are highly effective in alleviating many symptoms associated with seasonal allergic rhinitis (SAR), relief from nasal congestion is variable. The efficacy of desloratadine, an effective antihistamine, in combination with pseudoephedrine, a potent nasal decongestant, was evaluated to determine whether combination therapy was more effective than individual component therapy in reducing nasal congestion, as well as other SAR symptoms. This multicenter, randomized, double-blind, three-arm study included 650 patients with SAR. For 2 weeks, patients were administered a combination tablet of desloratadine plus pseudoephedrine (desloratadine/pseudoephedrine, 2.5/120 mg) twice per day (b.i.d.), desloratadine (5 mg) once per day, or pseudoephedrine (120 mg) b.i.d. Patients assessed the severity of their SAR symptoms twice daily on symptom diary cards. The primary variable—change from baseline in the reflective A.M./P.M. total symptom score, excluding nasal congestion—was significantly superior (−6.7) compared with desloratadine (−5.4) or pseudoephedrine (−5.3) alone (p ≤ 0.001 versus either group). Secondary efficacy variables including total symptom scores (plus congestion), total nasal symptom scores, and total nonnasal symptom scores were significantly reduced after desloratadine/pseudoephedrine therapy compared with the individual components. The most frequently reported adverse events were insomnia, headache, and dry mouth.

Desloratadine/pseudoephedrine, 2.5/120 mg b.i.d., therapy was more effective in reducing total symptom scores of SAR, including nasal congestion, than were the individual components. These results support the use of this combination therapy over desloratadine or pseudoephedrine alone.
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Document Type: Research Article

Publication date: 2005-09-01

More about this publication?
  • Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.

    The goal of the Proceedings is to publish articles with a predominantly clinical focus which directly impact quality of care for patients with allergic disease and asthma.

    Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.

    Articles marked "F" offer free full text for personal noncommercial use only.

    The journal is indexed in Thomson Reuters Web of Science and Science Citation Index Expanded, plus the National Library of Medicine's PubMed service.
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