In general, medications are all that is needed to treat low thyroid levels (known medically as
hypothyroidism). These drugs contain synthetic thyroxine, which is identical to the T
4 hormone produced by the thyroid gland. Brand-name versions include
Levoxyl®,
Synthroid®,
Levothroid®, and Unithroid
®.
Levothyroxine is the generic version.
You can take either the brand-name or generic version of these medicines, but it is best that you not switch between brand-name and/or different generic formulations. In addition, there is no single treatment for low thyroid levels that works for all people, and there is no "standard" dose. People have varying degrees of hypothyroidism and, as a result, their dose must be individualized.
The effects of treatment on thyroid levels can be seen in as little as two weeks. TSH levels are tested about six to eight weeks after a person begins taking medicines for hypothyroidism and the dose adjusted, if necessary. Each time the dose is adjusted, the blood tests are repeated.