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Oral iron administration — GPhC CRA MCQ

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EasyGI TherapeuticsOral iron administrationGPhC CRA

A patient starting ferrous sulfate for iron-deficiency anaemia asks why her stools have become dark and whether she should take it with tea. What would you advise the patient?

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Correct answer: D — Explain dark stools are common and tea may reduce iron absorption

Oral iron commonly darkens stools and can cause gastrointestinal adverse effects. Tea, calcium and some antacids can reduce iron absorption. Dark stools alone are expected, but the patient should seek advice if there are concerning symptoms such as tarry stools with weakness or abdominal pain. Practical dosing may balance absorption and tolerability.

Reference: BNF; NICE CKS