RP-HPLC Method Development and Validation for Simultaneous Estimation of Amitriptyline and Frovatriptan in Bulk and Pharmaceutical Dosage Forms. Journal of PharmTechNova, [S. l.], v. 1, n. 01, p. 12–23, 2026. DOI: 10.66220/tcgvcq60. Disponível em: https://pharmtechnova.com/index.php/jptn/article/view/5. Acesso em: 17 aug. 2026.