Gedela, V. and Gururaj, S. 2017. A prospective double blind randomized comparative study of safety and efficacy of Tapentadol versus Tramadol in post-operative orthopaedic patients. International Journal of Basic & Clinical Pharmacology. 6, 11 (Oct. 2017), 2727–2732. DOI:https://doi.org/10.18203/2319-2003.ijbcp20174796.