The subject invention provides 5-chloro-4-hydroxy- 1 -methyl-2-oxo-N-phenyl- 1,2- dihydroquinoline-3-carboxamide, its salts and uses.La invención actual proporciona 5-cloro-4-hidroxi-1-metil-2-oxo-N- fenil-1,2-dihidroquinolina-3-carboxamida, sus sales y usos.