کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2486241 1114378 2010 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigating dissolution performance critical areas on coated tablets: A case study using terahertz pulsed imaging
موضوعات مرتبط
علوم پزشکی و سلامت داروسازی، سم شناسی و علوم دارویی اکتشاف دارویی
پیش نمایش صفحه اول مقاله
Investigating dissolution performance critical areas on coated tablets: A case study using terahertz pulsed imaging
چکیده انگلیسی
During the process development of coated tablets, knowledge on the formation and the location of film coating 'weak spots' is a key factor to the success of the process and the resulting product batch. It is understood that the performance of the product batch may be greatly limited, and often compromised, by weak spots on the tablet film coat. This study uses circular, biconvex tablets to investigate the ability of terahertz pulsed imaging (TPI) to identify the affected areas on the tablet film coat that are critical for dissolution performance. From the TPI analysis we determined that the tablet central band exhibited the thinnest film coating, lowest coating density and highest surface roughness and thus was the performance limiting area of the film coating. Dissolution tests confirmed that the film coating on the tablet central band was indeed dissolution rate determining, with a faster mean dissolution time (MDT) of 7.4 h in comparison to 10.4 h for the convex top/bottom surface. TPI, as a nondestructive analytical technique, showed potential to be employed as a process analytical tool to probe film coating weak spots during film coating development and to assess the effect on the subsequent dissolution performance. © 2009 Wiley-Liss, Inc. and the American Pharmacists Association J Pharm Sci 99:392-402, 2010
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Pharmaceutical Sciences - Volume 99, Issue 1, January 2010, Pages 392-402
نویسندگان
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