A member asked:

I'm taking 200mcg of thyroxine sodium daily for the past 12 years.if i switch to 200mcg of levothyroxine sodium instead, what will be the side effect?

A doctor has provided 1 answer

Same thing: Hi. The only thyroxine sold as pure thyroxine is levothyroxine, so you should be fine. In other words, what was labeled as thyroxine was actually levothyroxine. After you make this switch, have your TSH and free T4 checked about 8 weeks later to assure biological similarity of the two different l-thyroxine preparations. Good luck!

Answered 4/27/2018

3.2k views

Thank

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