FORMULATION AND EVALUATION OF SUSTAINED RELEASE PELLETS OF TRAMADOL HYDROCHLORIDE. International Research Journal of Pharmacy, [S. l.], v. 4, n. 2, p. 29–32, 2024. Disponível em: https://irjponline.org/index.php/irjp/article/view/2003. Acesso em: 12 jan. 2026.