Development and Optimization of Nefopam hydrochloride Push-Pull Osmotic Pumps by Design of Experiments . International Journal of Pharmaceutical Sciences and Drug Research, [S. l.], v. 13, n. 4, p. 418–431, 2021. DOI: 10.25004/IJPSDR.2021.130408. Disponível em: https://ijpsdronline.com/index.php/journal/article/view/3117.. Acesso em: 15 oct. 2025.