A 28-year-old woman at 14 weeks of gestation presents to the GP with a new diagnosis of iron deficiency anaemia (Hb 98 g/L, ferritin 8 µg/L). She asks...

Question

A 28-year-old woman at 14 weeks of gestation presents to the GP with a new diagnosis of iron deficiency anaemia (Hb 98 g/L, ferritin 8 µg/L). She asks whether she can take her iron tablets at the same time as her levothyroxine. Which is the single most appropriate advice?

Accepted Answer

No - iron reduces the absorption of levothyroxine. They should be taken at least 2-4 hours apart.

Answer

Yes - there is no interaction between iron and levothyroxine

Answer

She should stop levothyroxine while taking iron

Answer

She should take both medications with a glass of milk

Answer

Intravenous iron is required to avoid the interaction

uk-drcog MCQ (SBA): Iron-Levothyroxine Interaction

A 28-year-old woman at 14 weeks of gestation presents to the GP with a new diagnosis of iron deficiency anaemia (Hb 98 g/L, ferritin 8 µg/L). She asks whether she can take her iron tablets at the same time as her levothyroxine. Which is the single most appropriate advice?