Ramu B, Kumar SU, Srikanth G, Rajkamal B. Formulation and Evaluation of Sustained Release Verapamil Hydrochloride Using Natural Polymers. IJAPSR [Internet]. 2016Jun.13 [cited 2025Oct.31];1(02):76-7. Available from: https://www.sierrajournals.com/index.php/IJAPSR/article/view/1019