How is the dose of thyroxine chosen?
The initial T4 dose is carefully selected based on your weight, age, and other medical conditions. The dose is then adjusted based on your thyroid hormone levels and your symptoms. The current branded forms of T4 are Synthroid® Levoxyl® Levothyroid® and Unithroid® . Although these all contain the same synthetic T4, there are different inert ingredients in each of brand names. In general, it is best for you to stay on the same brand name.
