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A member asked:

I've an hypothyrodism.i started with levo 25mcg from 5daysbut never change.my weight is increasing so far.how long does it take for it to start workng?

A doctor has provided 1 answer

A while, ?underdosed: B"sd 25 mcg is a small dose, usually I usually reserve for the elderly or heart patients. In any case the 1/2 life of thyroxine is about 14 days, so it takes about 2 months to steady state. Glad to discuss details.

Answered 3/6/2016

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