Description and Brand Names

Drug information provided by: Merative, Micromedex®

US Brand Name

  1. Ermeza
  2. Levothroid
  3. Levoxyl
  4. Synthroid
  5. Tirosint
  6. Tirosint-Sol
  7. Unithroid


Levothyroxine is used to treat hypothyroidism, a condition where the thyroid gland does not produce enough thyroid hormone. This medicine is also used to help decrease the size of enlarged thyroid glands (also called a goiter). Levothyroxine is also used together with surgery and radioiodine treatment to treat a type of thyroid cancer called thyroid-dependent well-differentiated thyroid cancer.

This medicine is available only with your doctor's prescription.

This product is available in the following dosage forms:

  • Capsule, Liquid Filled
  • Solution
  • Tablet