PURAM, M.; PATIL, A. Drotaverine hydrochloride and valethamate bromide action in management of labor. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 13, n. 12, p. 3648–3653, 2024. DOI: 10.18203/2320-1770.ijrcog20243599. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/14803. Acesso em: 25 nov. 2025.