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  • Title: Formulation of novel dry powder inhalation for fluticasone propionate and salmeterol xinafoate with capsule-based device.
    Author: Kim KS, Kim JH, Jin SG, Kim DW, Kim JO, Yong CS, Youn YS, Oh KT, Woo JS, Choi HG.
    Journal: Pharm Dev Technol; 2018 Feb; 23(2):158-166. PubMed ID: 28612675.
    Abstract:
    The aim of this study was to develop a novel fluticasone propionate (FP) and salmeterol xinafoate (SX)-loaded dry powder inhaler (DPI) system, which was composed of powder formulation and performance. The air flow resistances were determined with various types of DPI device, showing that the modified RS01 device gave the specific resistance similar to the commercial DPI device. The particle properties of FP, SX, and inhalation grade lactose particles, such as particle size, size distribution, and fine content, were assessed. Subsequently, the aerodynamic behaviors of the DPI powder formulations were evaluated by the in vitro deposition of drugs in the DPI products using Andersen cascade impactor. Amongst the DPI powder formulations tested, the formulation composed of FP, SX, Respitose® SV003, Respitose® SV010, and Respitose® ML006 at the weight ratio of 0.5/0.145/19/19/2 gave depositions, emitted dose, fine particle dose, fine particle fraction, and mass median aerodynamic diameter of drugs similar to the commercial product, suggesting that they had similar aerodynamic behaviors. Furthermore, it gave excellent content uniformity. Thus, this DPI using the modified RS01 device would be recommended as a candidate for FP and SX-loaded pharmaceutical DPI products.
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