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Levothyroxine administration — GPhC CRA MCQ

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ModerateEndocrine TherapeuticsLevothyroxine administrationGPhC CRA

A patient newly prescribed levothyroxine also takes calcium carbonate with breakfast and ferrous sulfate at lunchtime. What would you advise the patient?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: E — Take levothyroxine on an empty stomach away from calcium and iron

Calcium and iron can reduce levothyroxine absorption, so separation is important. This makes take levothyroxine on an empty stomach away from calcium and iron the single best answer in this scenario. The other options would either miss the key safety issue, delay appropriate review, or fail to meet the relevant clinical or professional requirement.

Reference: BNF