Okafo SE, Monioro PO, Enyaosah PO, Offor A. Formulation and Evaluation of Sustained Release Tablet of Metformin by Ionic Gelation Technique using Sida acuta Gum as Release Retardant. J. Drug Delivery Ther. [Internet]. 2023 May 15 [cited 2026 Jan. 18];13(5):22-8. Available from: https://www.jddtonline.info/index.php/jddt/article/view/5804