FERROTONE CAP X 50(BLISTER EACH) contains ferrous fumarate which is a form of an iron & is used in treatment of iron deficiency anaemia. Among all iron salts, ferrous fumarate provides the maximum amount of usable iron. Iron is a crucial component of Haemoglobin, a protein that carries oxygen from the lungs to all parts of the body through cells & tissues and helps maintain energy utilisation. Vitamin B12 & folic acid help regulate the production of red blood cells.