Development of Analytical Method and its Validation in Bilayer Tablet Containing Fexofenadine Hydrochloride (Immediate Release Layer) and Montelukast Sodium (Sustained Release Layer). Asian Journal of Pharmaceutics (AJP), [S. l.], v. 13, n. 3, 2019. DOI: 10.22377/ajp.v13i3.3302. Disponível em: http://www.asiapharmaceutics.info/index.php/ajp/article/view/3302. Acesso em: 14 apr. 2026.