“MERCURY SUBSTRATE METHOD NOVEL APPROCH FOR FORMULATION OF DROTAVERINE HYDROCHLORIDE TRANSDERMAL PATCHES”, IJFANS, vol. 11, no. Special Issue 3, pp. 3356–3366, Jan. 2022, Accessed: Sep. 01, 2026. [Online]. Available: https://www.ijfans.org/index.php/Journal/article/view/9254