Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

MedlinePlus Connect found the following health information for your request. Always consult your health care provider about your specific situation.

Levothyroxine

National Library of Medicine - American Society of Health-System Pharmacists

Levothyroxine is used to treat hypothyroidism (condition where the thyroid gland does not produce enough thyroid hormone). It is also used with surgery and radioactive iodine therapy to treat thyroid cancer. Levothyroxine is in a class of medications called hormones. It works by replacing thyroid hormone that is normally produced by the body. Without thyroid hormone, your body cannot function... https://medlineplus.gov/druginfo/meds/a682461.html

MedlinePlus Connect links to health information from the National Institutes of Health and other federal government agencies. MedlinePlus Connect also links to health information from non-government Web sites. See our disclaimers about external links and our quality guidelines.