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  2. 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 ...

  3. Thyroxine - Wikipedia

    en.wikipedia.org/wiki/Thyroxine

    Thyroxine, also known as T 4, is a hormone produced by the thyroid gland.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]

  4. Thyroid hormones - Wikipedia

    en.wikipedia.org/wiki/Thyroid_hormones

    Levothyroxine is the chemical name of the manufactured version of T 4, which is metabolised more slowly than T 3 and hence usually only needs once-daily administration. Natural desiccated thyroid hormones are derived from pig thyroid glands, and are a "natural" hypothyroid treatment containing 20% T 3 and traces of T 2 , T 1 and calcitonin .

  5. Switching Antidepressants: Safety, Side Effects & Other ... - AOL

    www.aol.com/switching-antidepressants-safety...

    Switching directly is usually only a safe option for switching between certain SSRIs and SNRIs with short half-lives, as these medications are less likely to cause drug interactions or unwanted ...

  6. Antithyroid agent - Wikipedia

    en.wikipedia.org/wiki/Antithyroid_agent

    They inhibit release of thyroid hormones by the thyroid gland.The most studied drug in this class is lithium, which inhibits thyroid hormone secretion by inhibiting iodotyrosine coupling, thyroidal iodide uptake, and alteration in structure of thyroglobulin, [10] a protein which acts as a substrate for the synthesis of thyroid hormones and storage of inactive forms of T3, T4 and iodine within ...

  7. Desiccated thyroid extract - Wikipedia

    en.wikipedia.org/wiki/Desiccated_thyroid_extract

    Replacement occurred faster in the United Kingdom than in North America, but by the 1980s more patients were being prescribed synthetic T4 (levothyroxine) or synthetic T4/T3 combinations than desiccated thyroid extract. [citation needed] Several reasons have been identified as to why prescriptions changed from desiccated thyroid treatment.

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