orphenadrine citrate and its Impurities
A skeletal muscle relaxant drug used to relieve pain and discomfort caused by strains, sprains, and other muscle injuries. Orphenadrine belongs to ethanolamine antihistamine class and it is a methylated derivative of diphenhydramine.Reference standards of Orphenadrine Citrate API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.