Getting more iron by eating iron-rich foods and taking an oral iron supplement are effective ways to treat iron deficiency, and while this is the preferred method of iron therapy, there are certain circumstances where intravenous (IV) iron may be necessary.
IV iron therapy is beneficial when iron supplements are unsatisfactory or impossible, such as dialysis associated anemia related to chronic kidney disease. The British Columbia Ministry of Health Guidelines and Protocols state that oral iron supplementation (compared to IV iron therapy) is safer, more cost-effective and convenient.