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|Title:||Fabrication and evaluation of Eudragit<sup>®</sup> polymeric films for transdermal delivery of piroxicam|
Varaporn Buraphacheep Junyaprasert
|Keywords:||Pharmacology, Toxicology and Pharmaceutics|
|Citation:||Pharmaceutical Development and Technology. Vol.23, No.8 (2018), 771-779|
|Abstract:||© 2017, © 2017 Informa UK Limited, trading as Taylor & Francis Group. The aims of this work were to develop and characterize the prolonged release piroxicam transdermal patch as a prototype to substitute oral formulations, to reduce side effects and improve patient compliance. The patches were composed of film formers (Eudragit®) as a matrix backbone, with PVC as a backing membrane and PEG200 used as a plasticizer. Results from X-ray diffraction patterns and Fourier transform-infrared spectroscopy indicated that loading piroxicam into films changed the drug crystallinity from needle to an amorphous or dissolved form. Piroxicam films were prepared using Eudragit® RL100 and Eudragit® RS100 as film formers at various ratios from 1:0 to 1:3. Films prepared solely by Eudragit® RL100 showed the toughest and softest film, while other formulations containing Eudragit® RS100 were hard and brittle. Drug release kinetic data from the films fitted with the Higuchi model, and the piroxicam release mechanism was diffusion controlled. Among all formulation tested, Eudragit® RL100 films showed the highest drug release rate and the highest drug permeation flux across human epidermal membrane. Increasing drug loading led to an increase in drug release rate. Eudragit® can be used as a film former for the fabrication of piroxicam films.|
|Appears in Collections:||Scopus 2018|
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