Ferrum Sulphuricum. Sulphate of Iron. Ferrous Sulphate. Iron or Green Vitriol. Copperas. Fe SO4, 7H2O. Trituration of the pure crystals.   Clinical.-Aphthae. Bulimy. Cardialgia. Chorea. Constipation. Diarrhoea. Eczema. Gall-bladder, pain