levallorphan and its Impurities

Levallorphan is used in general anesthesia, mainly to reverse the respiratory depression produced by opioid analgesics and barbiturates used for induction of surgical anaesthesia whilst maintaining a degree of analgesia. Levallorphan, also known as levallorphan tartrate.Reference standards of Levallorphan API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.