Endocrine Abstracts

Background: Absorption of levothyroxine is significantly reduced in the presence of oral iron if these two medications are ingested simultaneously, possible as a result of the formation of an insoluble complex with these 2 medications. Ideally all hypothyroid pregnant women on thyroid replacement therapy should be advised to avoid simultaneous ingestion of levothyroxine and iron containing medicines.Patients and methods: We conducted a retrospective obse...