Biology — Thyroid Drug Interactions
Interactions affecting levothyroxine therapy.
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title "Thyroid medication interactions"
drug L "Levothyroxine" class thyroid-hormone
drug F "Iron / calcium" class supplement
drug P "PPI" class antacid
drug W "Warfarin" class anticoagulant
drug A "Amiodarone" class antiarrhythmic
interact L F "reduced absorption" severity moderate mechanism "binds in gut"
interact L P "reduced absorption" severity moderate
interact L W "rise in INR" severity moderate mechanism "altered metabolism"
interact A L "altered thyroid function" severity major mechanism "iodine load"