RP-HPLC Method Development and Validation for Simultaneous Estimation of Duloxetin and Methylcobalamine in Combined Dosage Form. International Journal of Advances in Pharmaceutical Analysis, [S. l.], v. 6, n. 2, p. 09–15, 2016. DOI: 10.7439/ijapa.v6i2.3834. Disponível em: https://www.ssjournals.co.in/index.php/ijapa/article/view/3834. Acesso em: 17 mar. 2026.