amantadine Sulfate and its Impurities

Amantadine, sold under the brand name Gocovri. It is used to treat Parkinson's Disease and "parkinson-like" symptoms such as stiffness and shaking that may be caused by the use of certain drugs.Reference standards of Amantadine Sulfate API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.