Drugs that alter thyroid functions


Drugs that cause hypothyroidism 

Thionamides, lithium, amiodarone, potassium iodide, betadine, cough syrups, thalidomide, contrast agents used in radiology, cholestyramine, omeprazole, lansoprazole, calcium carbonate, ferrous sulphate, aluminum hydroxide, chromium, glucocorticoids, dopamine, dobutamine, somatostatin, metformin, interferon alfa, interleukin-2


Drugs that cause hyperthyroidism 

Amiodarone, iodine, interferon alpha, interleukin-2


In case of unexplained thyroid hormone test disorders, detailed history of drug use should be taken. Even if a drug that the patient does not mind is used, the doctor should be informed. If a drug that affects the metabolism of thyroid hormone is used, there should be 4 hour intervals between medications.