Investigation of Theophylline Release Kinetics from Carbopol 940P Sustained Release Matrix Tablets. The East and Central African Journal of Pharmaceutical Sciences, [S. l.], v. 24, n. 1, p. 15–20, 2021. Disponível em: http://jsep.uonbi.ac.ke/ojs/index.php/ecajps/article/view/815. Acesso em: 11 may. 2026.