Metamizole sodium, Sodium [(2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazol-4-yl)methylamino]methanesulfonate, [(2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazol-4-yl)methylamino] methanesulfonic acid; pyrojec; conmel; Sulpin; fevonil; Dipyron; Anador; pyretin; Dipyrone; ARPF; Barone [Trade name]; Alangin;