metadoxine and its Impurities

A selective antagonist of the serotonin receptor subtype 5-HT2B, Metadoxine is used to treat alcohol intoxication. It is an ion pair salt of pyridoxine and pyrrolidon carboxilate. It is also used for treating liver diseases. Reference standards of Metadoxine API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.