Iron is an essential element required for the oxygen-carrying capacity of haemoglobin (the red pigment in red blood cells) and of myoglobin (the red pigment in muscle tissue). Moreover, iron plays an important role in many other vital processes in the human body. Treatment of iron deficiency in adults and adolescents (Children ≥12 years) where the use of ferrous iron supplements is not tolerated, or otherwise inappropriate, take 100 mg to 200 mg iron (1 to 2 tablets, 10 - 20 mL syrup, or 40-80 drops) daily preferably with food, or higher doses as directed by your medical practitioner. Prevention of iron deficiency in adults and adolescents (Children ≥12 years) at high risk where the use of ferrous iron supplements is not tolerated, or otherwise inappropriate, take 100 mg iron (1 tablet, 10.