IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-2-33604 Original Research Paper To compare the efficacy of Drotaverine hydrochloride and Valethamate bromide in shortening of the first stage of labour at Obstetrics and Gynaecology Department of JLNMCH, Bhagalpur, Bihar Archana Jha Dr. Dr. [Prof.] Usha Kumari Dr. February 2021 10 2 01 02