“FORMULATION, DEVELOPMENT AND EVALUATION OF DOXOPHYLLINE SUSTAINED RELEASE MATRIX TABLET”, Int. Res. J. Pharm., vol. 2, no. 12, pp. 100–103, Dec. 2011, Accessed: Nov. 02, 2026. [Online]. Available: https://irjponline.org/index.php/irjp/article/view/3006