METERED DOSE INHALATION FORMULATIONS OF SALBUTAMOL SULPHATE USING NON-CFC PROPELLANT TETRAFLUOROETHANE. International Journal of Pharmaceutical Sciences and Drug Research, [S. l.], v. 3, n. 4, p. 292–296, 2011. DOI: 10.25004/IJPSDR.2011.030404. Disponível em: https://ijpsdronline.com/index.php/journal/article/view/460.. Acesso em: 25 sep. 2025.