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2. Liothyronine - Wikipedia

   en.wikipedia.org/wiki/Liothyronine

   For patients taking levothyroxine, TSH may be boosted by discontinuing levothyroxine for 3–6 weeks. [6] This long period of hormone withdrawal is required because of levothyroxine's relatively long biological half-life, and may result in symptoms of hypothyroidism in the patient. The shorter half-life of liothyronine permits a withdrawal ...

3. Desiccated thyroid extract - Wikipedia

   en.wikipedia.org/wiki/Desiccated_thyroid_extract

   Desiccated Thyroid became a commercial treatment option in 1934 with Westhroid, [citation needed]. In the early 1960s, desiccated thyroid hormones (thyroid extract) began to be replaced by levothyroxine (synthetic T4), or by combinations of T4 and T3. Replacement occurred faster in the United Kingdom than in North America, but by the 1980s more ...

4. Common thyroid drug levothyroxine linked to bone mass loss - AOL

   www.aol.com/lifestyle/common-thyroid-drug...

   Levothyroxine, a drug used to treat hypothyroidism, can lead to reduced bone mass and density in older adults with normal thyroid levels, a small cohort study has shown.

5. Thyroid disease in women - Wikipedia

   en.wikipedia.org/wiki/Thyroid_disease_in_women

   Levothyroxine is safe to use during pregnancy and necessary for the health of the baby. [4] Women with Hashimoto's disease or an underactive thyroid who are taking levothyroxine before pregnancy may need a higher dose to maintain normal thyroid function. Clinicians may check thyroid function every 6 to 8 weeks during pregnancy.

6. Levothyroxine - Wikipedia

   en.wikipedia.org/wiki/Levothyroxine

   Levothyroxine is a synthetic form of thyroxine (T 4), which is secreted by the thyroid gland. Levothyroxine and thyroxine are chemically identical: natural thyroxine is also in the "levo" chiral form, the difference is only in terminological preference. T 4 is biosynthesized from tyrosine. Approximately 5% of the US population suffers from over ...

7. Thyroid hormones - Wikipedia

   en.wikipedia.org/wiki/Thyroid_hormones

   The thyroid system of the thyroid hormones T 3 and T 4 [1] Thyroid hormones are any hormones produced and released by the thyroid gland, namely triiodothyronine (T 3) and thyroxine (T 4). They are tyrosine-based hormones that are primarily responsible for regulation of metabolism. T 3 and T 4 are partially composed of iodine, derived from food. [2]

8. Thyroxine - Wikipedia

   en.wikipedia.org/wiki/Thyroxine

   It is the primary form of thyroid hormone found in the blood and acts as a prohormone of the more active thyroid hormone, triiodothyronine (T 3). [1] Thyroxine and its active metabolites are essential for regulating metabolic rate , supporting heart and muscle function , promoting brain development , and maintaining bone health .

9. Thyrotoxic myopathy - Wikipedia

   en.wikipedia.org/wiki/Thyrotoxic_myopathy

   Administering the radioactive isotope causes the thyroid to take in the lethal iodine and quickly radiation destroys it. [12] Typically overproduction of thyroxine using radio-iodine is blocked with one dose. The drawback to this treatment is the thyroid gland is completely destroyed and patients often develop hypothyroidism. Some do so only a ...