does anyone know how long levothyroxine stays i... - Thyroid UK

Thyroid UK

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does anyone know how long levothyroxine stays in your system ie a urinalysis?

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I take 112mcg daily

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shawsAdministrator

It takes about 4 to 6 weeks to build up in your system initially. If you took a dose today then didn't take any more, it would gradually diminish over about the same period.

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