Development and In Vitro Characterization of a Sustained-Release Pirfenidone Matrix Tablet Using Hydrophilic and Hydrophobic Polymers: Research Article. JOPIR [Internet]. 2025 Oct. 5 [cited 2025 Dec. 1];3(5):319-25. Available from: https://jopir.in/index.php/journals/article/view/581