A patient taking propylthiouracil should be instructed to avoid what food or food product in the diet:


•Propylthiouracil blocks the synthesis of thyroid hormones.

•Iodine is utilized in the synthesis of thyroid hormones and will interfere with the action of propylthiouracil; therefore, iodized table salt, fortified with iodine, should be reduced or eliminated.

•Other foods high in iodine include: dried seaweed, cod, baked potato with peel, shrimp, turkey breast, tuna, and egg.

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