Synonyms: (-)-Dropropizine;1,2-Propanediol,3-(4-phenyl-1-piperazinyl)-,(2S)-;DF 526;Levodropropizina [INN-Spanish];Levodropropizine [INN];1,2-Propanediol, 3-(4-phenylpiperazin-1-yl)-, S(-)-;Levodropropizinum [INN-Latin];Levotuss;Danka;(2S)-3-(4-phenylpiperazin-1-yl)propane-1,2-diol;(-)-(S)-3-(4-Phenyl-1-piperazinyl)-1,2-propanediol;S(-)-3-(4-Phenylpiperazin-1-yl)propane-1,2-diol;1,2-Propanediol, 3-(4-phenylpiperazin-1-yl)-, S(-)-;S(-)-3-(4-Phenylpiperazin-1-yl)propane-1,2-diol;