“DESIGN OF EXTENDED RELEASE MATRIX TABLET OF TRAMADOL HYDROCHLORIDE USING COMBINATION OF HYDROPHOBIC AND HYDROPHILIC POLYMER”. International Journal of Pharmaceutical Sciences and Drug Research 9, no. 5 (September 1, 2017): 214–219. Accessed October 24, 2025. https://ijpsdronline.com/index.php/journal/article/view/560.