Intranasal corticosteroids are widely used to treat allergic rhinitis. A generic version of fluticasone furoate nasal spray, launched in June 2023, has a different device from the original Allermist® nasal spray. However, the impact of this design change on patient satisfaction remains unexplored.
This study aimed to evaluate patient experiences when switching from Allermist® nasal spray to the generic product and to provide information supporting the appropriate selection of generic products.
We surveyed patients who switched from Allermist® nasal spray to the generic version at 11 pharmacies within our group between September 1 and November 30, 2023. The questionnaire comprised 11 items on “physical properties,” “usability,” and “post-use sensations/experience” rated on a five-point scale. Additionally, we asked patients which device they preferred if both were equally priced.
Data from 85 patients showed differences in “physical properties” and “usability” (such as ease of holding, pressing, and opening/closing the cap) between the two devices. In contrast, for “post-use sensations/experience” (e.g., odor of the liquid, dripping), the majority of patients perceived no difference between the two devices. Regarding future device preference, 26 patients (30.6%) preferred the generic, 30 (35.3%) preferred the original, and 29 (34.1%) had no preference.
Our findings indicated that the evaluations of “physical properties” and “usability” differed among patients, suggesting that determining a superior device is not possible. However, “post-use sensations/experience” were similar for both devices. Because the “usability” and “physical properties” of the device may influence patient adherence, clinicians should thoroughly inform patients of these differences when switching devices.
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