Development and characterization of sustain release gastro retentive floating microsphere of diltiazem hydrochloride for the treatment of hypertension. Asian Journal of Pharmaceutics (AJP), [S. l.], v. 9, n. 2, p. 107–112, 2015. DOI: 10.22377/ajp.v9i2.439. Disponível em: https://www.asiapharmaceutics.info/index.php/ajp/article/view/439. Acesso em: 15 apr. 2026.