How effective is iron therapy for iron deficiency anaemia?

Iron is a building material for haemoglobin, which carries oxygen in red blood cells. Treatment may be given by mouth or, when oral treatment is unsuitable or insufficient, through a vein. The suitable route depends on the severity of deficiency, digestive absorption, tolerance, other health conditions and clinical assessment.

Feeling better can lag behind the start of treatment, and restoring stored iron can take longer than improving a blood count. Continuing blood loss, poor absorption or an incorrect diagnosis can make the response slower or incomplete.

Follow the prescribed plan and tell the treatment team about allergies, medicines, pregnancy, digestive problems and previous reactions. Oral therapy can cause constipation, nausea or dark stools. Intravenous therapy is given under clinical supervision because reactions can occur during or after an infusion.

Keep review appointments and complete recommended blood tests. If the response is limited, the clinician may check adherence, absorption, ongoing bleeding or another cause, then revise the plan. Do not arrange iron injections or infusions without medical assessment.

Seek urgent care for chest pain, severe breathlessness, fainting, confusion, heavy bleeding or vomiting blood. After an infusion, get immediate help for swelling of the face or throat, wheezing, widespread rash or sudden dizziness. Report worsening symptoms or severe digestive effects during oral treatment.

Ask which route is appropriate, what response will be monitored, when testing is due, how long stored iron may need replenishing, and whether ongoing blood loss or absorption problems could affect treatment.