What Causes Hives And Itching After Taking Synthroid?

Posted on Sun, 18 May 2014

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Sun, 18 May 2014 Answered on

Sat, 14 Jun 2014 Last reviewed on

Question : I am taking synthroid and having side effects like hives and itching.my doctor said it not the synthroid and to continue. What should I do?

Answered by Dr. Dr.Albana Sejdini Greca (1 hour later)

Brief Answer:
Suggested to shift to another brand...

Detailed Answer:
Hi there,

If the hives and itching started after you started taking synthroid, then, if I was your caring doctor would ask to run thyroid function test. If breaking of hives and itching is unbearable, I'd shift to another brand.

A drug (like Synthroid) consists of active ingredient (Levothyroxine) and other inactive ingredients. These inactive ingredients might be the culprit for your hives and itching. You can shift to another brand containing the active ingredient levothyroxine, e.g. Levoxyl, Levothroid, etc.) and see if any difference.

Hope it helped! Let me know if you have further queries!
Dr.Albana

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar