Which iron supplements or treatment would you recommend for a 49 years old woman suffering from severe anemia that isn't resolving with supplements such as maltofer or gyno-tardyferon .her doctor said the most likely reason is her heavy long periods.

Iron def anemia: The cause of iron deficiency must be identified, especially in adults. In her case, the likely cause could be her menorrhagia. She should see her GYN to address this underlying cause. All oral iron preparations are equally effective. IV iron may be considered if the patient has ongoing blood loss, impaired oral iron absorption or intolerable GI side effects.