Tell your doctor about all medicines you use, and those you start or stop using during your treatment with desiccated thyroid, especially:
birth control pills or hormone replacement therapy;
a blood thinner such as warfarin, Coumadin, Jantoven;
insulin or diabetes medication you take by mouth;
medications that contain iodine (such as I-131);
salicylates such as aspirin, Nuprin Backache Caplet, Kaopectate, KneeRelief, Pamprin Cramp Formula, Pepto-Bismol, Tricosal, Trilisate; or
steroids such as prednisone and others.
This list is not complete. Other drugs may interact with desiccated thyroid, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed in this medication guide.
 Westhroid drug interactions (more detail)
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