Synonyms: PHENDIMETRAZINE BITARTRATE;3,4-dimethyl-2-phenyl-,tartrate,d-morpholin;3,4-dimethyl-2-phenyl-morpholin(+)-morpholintartrate(1:1);adipost;d-3,4-dimethyl-2-phenyl-morpholinetartrate;melfiat;metra;morpholine,3,4-dimethyl-2-phenyl-,(2s-trans)-,(r-(r*,r*))-2,3-dihydroxybut