Allergic Reaction to Levothyroxine? : Hi guys, So... - Thyroid UK

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Allergic Reaction to Levothyroxine?

glennss3 profile image
3 Replies

Hi guys,

So I have Graves disease and got the RAI. I went hypo around the beginning of July and started 50 mcg of Levothyroxine.

(These are all in the US scale of measurements) I recently went in to get tested and T4 was .70 (normal range 0.85-1.88) but my TSH was 0.1 (normal 0.45-5). My endocrinologist said that the TSH can take a while to catch on in Graves patients, and my symptoms were still hypo.

So she increased my dose to 88 mcg. Even before my dose increased I noticed a tightness in my chest when breathing. It feels like I can't get enough air in. I also have a terrible cough in the morning that brings up phlegm. I also have an intermittent fever, body aches, chills, diarrhea, and nausea.

Could this be a weird reaction to Levothyroxine? I think it might be bronchitis. So, I am going to get it checked tomorrow! But did anyone else have these kinds of side effects with Levo? I am worried I am having some kind of allergic reaction!

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glennss3
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glennss3 profile image
glennss3

Oh I also have headache that comes and goes and my skin is breaking out like crazy!

shaws profile image
shawsAdministrator

To try to check if you have a sensitivity in the fillers/binders trying taking an anti-histamine tablet 1 hour before your dose of levo. If it is relieved then change to another make of levo.

greygoose profile image
greygoose

Sounds more like you've got flu.

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