What to know about iron therapy in pregnancy

Pregnancy increases the body's need for iron because blood production expands and the developing baby needs iron. Low iron can contribute to tiredness, reduced exercise tolerance, dizziness, headaches, or breathlessness, although these symptoms can have other causes. Blood tests help distinguish iron deficiency from other types of anaemia.

Oral iron tablets are often tried first. They can cause nausea, constipation, stomach discomfort, or darker stools. An iron infusion delivers iron through a vein and may be considered when tablets are not tolerated, are not absorbed well, or are not restoring levels quickly enough.

Take the prescribed preparation exactly as directed. Your clinician or pharmacist can explain whether to take it with food and how to separate it from tea, coffee, calcium supplements, or medicines that interfere with absorption. Do not double a missed dose unless advised.

Include iron-containing foods such as meat, beans, lentils, fortified cereals, and leafy vegetables where they fit your diet. Attend repeat blood tests so treatment can be adjusted and continue only as long as advised. Keep iron away from children because an accidental large ingestion can be dangerous.

Seek urgent help for severe breathlessness at rest, chest pain, fainting, heavy bleeding, facial swelling, or trouble breathing after an infusion. Contact your maternity team for persistent vomiting, severe abdominal pain, worsening dizziness, or constipation that does not improve with the agreed plan.

What do my blood results show, and what improvement should we expect? Which iron product and schedule should I use? How can I manage constipation or nausea? Do any of my medicines affect absorption? When will my blood be checked again, and when would an infusion be considered?