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.
The need for T3 treatment. In mainstream medicine, T4 drugs like Synthroid are the gold standard for treatment of hypothyroidism. While these drugs work for some, for many of us these drugs fail to relieve our symptoms. Our bodies need to convert the T4 in these drugs to the active useable thyroid hormone T3.