Gudala Harichandana, Praveen Gujjula, Dr. D. Raghava, Dr. Kavala Nageswara Rao. (2025). Design, Formulation and In-Vitro Evaluation of Sustained Release Matrix Tablets of Sitagliptin Using Natural Polymers . History of Medicine, 11(2), 61-66. https://doi.org/10.48047/