sumatriptan succinate1-{3-[2-(dimethylamino)ethyl]-1H-indol-5-yl}-N-methylmethanesulfonamide succinate3-(2-(Dimethylamino)ethyl)-N-methylindole-5-methanesulfonamide succinateN,N-dimethyl-2-{5-[(methylsulfamoyl)methyl]-1H-indol-3-yl}ethanaminium 3-carboxypropanoatesumatriptan hydrogen succinate