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Method of use: Injection, Pill
Prescribing mode: Rx
Levothyroxine, also L-thyroxine, synthetic thyroxine, or 3,5,3',5'-tetraiodo-L-thyronine, is a synthetic form of th...
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Levothyroxine for Hypothyroidism
38,032 conversations around the web about Levothyroxine to help you make a decision
We analyzed what people said about Levothyroxine and compared it to other Hypothyroidism medications
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Does Levothyroxine cause Hives ?

Hives is a known side effect of Levothyroxine
#57 in Levothyroxine discussions - 111 posts discuss Hives with Levothyroxine. Hives is #57 concern in Levothyroxine discussions.
We found 111 discussions
Thyronorm and Hives
I have had Hypothyroid for about 11 years now. I was on Thyronorm 100mcg (Levothyroxine) for about 3 years now. Latest Blood Test show TSH T3 and T4 levels as normal therefore Doctor advised to reduce the dose to Thyronorm 50mcg. Since this reduction I am having a bad case of Hives. What could be the reason and how to tackle it?
Allergy Specialist
October 8, 2014
Hives are often linked to hypothyroidism

Post from
" thyroid meds upped in September and then changed to synthroid. I was taking levothyroxine. After that I broke out in hives ... I just did research and found out it is very possible that... "

" pick up my refill of Levoxyl, noticed it was the generic brand Levothyroxine. CPAP! Did you experience hives and itching as well? The reason I asked is because my doctor thinks there... "

" ...range. Getting welts or hives. Side effects of medication? My doctor has increased Levothyroxine tab from 0.25 welts or hives. I am wondering ...the medication. I am also diabetic. I... "

" ...taking levothyroxine 100mg tablets six months ago. Like yourself I suffer from severe skin rash, hives and itching. Before taking medicine my weight increased and I felt really tired all the time.... "

Post from
" ...I was just diagnosed with hypothyroidism, and just found on 50 mcg levothyroxine. On the second dose I got hives on my lips almost ...inactive ingredient in the Levothyroxine. I have so... "

" ...Levothyroxine for 4.5 weeks. I have been feeling pretty good for the most part. Just a couple days of feeling anxious etc. I got my period yesterday and have just felt awful today. My skin feels ... "

" ...the thyroid medication IC Levothyroxine 75 mcg tablet? I have been taking this medication for 20 plus years. My reason for this question is I have some random hives. I got these hives at the end of... "

" ...AdvertisementHi! I have been on 30 mg of thiamazole for a year and ...replace, so I also use levothyroxine. Since January I began to break out in hives al over my body and... "

" ...terms that levothyroxine stays in your system up to a week and takes about 8-12 hours to take full effect in the body. I always took it in the morning so it made sense that my hives came at... "

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