DEVELOPMENT AND OPTIMIZATION OF GASTRO-RETENTIVE FORMULATION OF HYDRALAZINE HCL. International Journal of Pharmaceutical Sciences and Drug Research, [S. l.], v. 8, n. 5, p. 249–253, 2016. DOI: 10.25004/IJPSDR.2016.080502. Disponível em: https://ijpsdronline.com/index.php/journal/article/view/567.. Acesso em: 21 sep. 2025.