In vitro study on the interaction of ketotifen fumarate with anhydrous theophylline. Brazilian Journal of Pharmaceutical Sciences, [S. l.], v. 48, n. 2, p. 211–216, 2012. DOI: 10.1590/S1984-82502012000200004. Disponível em: https://www.revistas.usp.br/bjps/article/view/46171.. Acesso em: 3 may. 2024.