S BR, G S, N B, M V, B A, S WR. Design and Evaluation of Sustained Release Bilayer Tablet of Metformin Hydrochloride with Metoprolol Tartrate . ijntps [Internet]. 2011Jan.10 [cited 2025Jan.31];1(1):10-7. Available from: https://scienztech.org/index.php/ijntps/article/view/50