Preparation and In vitro Evaluation of Theophylline Loaded Gastroretentive Floating Tablets of METHOCEL K4M. Dhaka University Journal of Pharmaceutical Sciences, [S. l.], v. 7, n. 1, p. 65–70, 2008. DOI: 10.3329/dujps.v7i1.1220. Disponível em: https://banglajol.info/index.php/JPharma/article/view/1220. Acesso em: 2 jul. 2026.