Optimization of nifedipine loaded gastroretentive microcapsules for biliary colic. Asian Journal of Pharmaceutics (AJP), [S. l.], v. 6, n. 4, 2014. DOI: 10.22377/ajp.v6i4.218. Disponível em: https://www.asiapharmaceutics.info/index.php/ajp/article/view/218. Acesso em: 15 apr. 2026.