Development and validation of new analytical method for the simultaneous estimation of amitriptyline and perphenazine in bulk and pharmaceutical dosage form by RP-HPLC. International Journal of Research in Pharmaceutical Sciences and Technology, [S. l.], v. 1, n. 1, p. 12–21, 2024. DOI: 10.33974/ijrpst.v1i1.19. Disponível em: https://rubatosis.org/journals/index.php/ijrpst/article/view/2.. Acesso em: 24 dec. 2025.