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This paper presents the effect of carrageenan (CG) on some characteristics and drug release of allopurinol in the presence of polyethylene oxide (PEO) as a dispersion aid agent. The samples were prepared in film shape by solution method, in which, the content of PEO was changed from 1 wt.% to 5 wt.% and the content of allopurinol was fixed at 10 wt.% in comparison with carrageenan weight. Fourier transforms infrared (FTIR) spectroscopy and Field emission scanning electron microscopy (FESEM) methods were used to evaluate interactions and morphology of CG/PEO/allopurinol films. Ultraviolet-visible spectroscopy (UV-Vis) analysis was used to determine drug loading capacity and drug release of CG/PEO/allopurinol films. | Some characteristics and allopurinol release of carrageenan/ allopurinol films using polyethylene oxide as a dispersion aid agent
