Acridines are all potent antiseptics.Acriflavine, like other acridine derivatives, is effective against both gram positive and gram negative bacteria. It possesses the advantage of retaining its activity in the presence of body fluids and pus and of being comparatively free from toxic or  irritant action.Acriflavine is suitable for the treatment of contaminated or suppurating (weeping) wounds. (The wound having being thoroughly cleansed).