Type the formula that you want to use. The formula that you typed is automatically filled into all cells of the column â above as well as below the active cell. Notes. Copying or filling a formula into all cells of a blank table column also creates a calculated column.
Drug-induced hypothyroidism may be caused by: 1  Drugs used for hyperthyroidism (overactive thyroid), such as propylthiouracil (PTU), radioactive iodine, potassium iodide, and methimazole. 2  Treatment with lithium or iodides in certain people.
If you have hypothyroidism, take thyroid hormone replacement as directed by your doctor â generally with an empty stomach. It's also important to note that too much dietary fiber can impair the absorption of synthetic thyroid hormone. Certain foods, supplements and medications can have the same effect. Avoid taking your thyroid hormone at the same time as: 1  Walnuts. 2  Soybean flour. 3  Cottonseed meal. 4  Iron supplements or multivitamins containing iron. 5  Calcium supplements. 6  Antacids that contain aluminum or magnesium. 7  Some ulcer medications, such as sucralfate (Carafate).