Development and investigation of gastro retentive dosage form of weakly basic drug. Asian Journal of Pharmaceutics (AJP), [S. l.], v. 4, n. 1, 2014. DOI: 10.22377/ajp.v4i1.117. Disponível em: https://www.asiapharmaceutics.info/index.php/ajp/article/view/117. Acesso em: 15 apr. 2026.