THYROID SCAN MEDICATION LIST

You will need to stop taking several medications prior to the Thyroid Scan. Below is a list of the medications and the length of time you will need to stop taking them prior to your exam. Please consult your doctor before stopping any medication.

Thyroid Medications

• Thyroxine (Synthroid, Levothyroid, Levoxyl): 2 weeks
• Liothyronine (Cytomel, Thyrolar): 2 weeks

Iodide-Containing Drugs

• SSKI, Lugol’s solution: 2 weeks
• Amiodarone (Cordarone), benziodarone: 2 weeks
• Iodoquinol (Diodoquin) (amebicide): 2 weeks
• Expectorants - Calcidrine Syrup (CaI2), iodinated glycerol, hydriodic acid syrup: 2 weeks
• Echothiopate iodide (ophthalmic): 2 weeks
• Isopropamide iodide (anticholinergic): 2 weeks
• Vitamin and mineral products: 2 weeks

Other Drugs

• Phenylbutazone (apo-Phenylbutazone): 1 week
• Sulfonamides (Septra [DS], Apo-Sulfatrim, Novo-Trimel [DS] , Nu-Cotrimox, Coptin, Pediazole): 2 weeks
• Adrenal and gonadal steroids: 2 weeks
• ACTH (Cortrosyn, Synacthen Depot): 2 weeks

Topical Iodide Products

• Iodochlorhydroxyquin (Clioquinol): 1 – 9 months
• Iodine tincture: 2 weeks
• Povidone iodine: 2 weeks
• Iodoform gauze: 2 weeks

X-Ray or CT Dye (Contrast Media)

• Hypaque Meglumine, Hypaque Sodium (Winthrop): 4 weeks
• Lipiodol, Ethiodol (Fougera): 1 year or more
• Cholografin Meglumine (Bracco): 3 months
• Telepaque (Nycomed): 2 months