Rationale and aim: Nasal congestion is a common symptom in allergic and non-allergic rhinitis, rhinosinusitis and nasal polyposis. Although various pharmacotherapy options exist, no agent is universally efficacious. The aim of this study was to evaluate the clinical effectiveness efficacy of Narivent , which is an osmotically acting medical device with anti-oedematous and anti-inflammatory effects, in a long-term (30 days) treatment.
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Valerio Damiani (2012) studied this question.
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