I have been taking Synthroid 25 mcg for a year now, and here is a list of side effects that I have experienced. Appetite has gone nuts, Gained 15 lbs, ringing in my ears has gotten louder, here is some scary stuff-constant visual disturbances, and now moderate to severe vertigo of which I have never had before the medicine!
This registry is a place to share positive or negative side effects of using Synthroid. If you directly experienced a side effect while using Synthroid, then we encourage you to enter it here. Please note that entries here are the experiences of individual users, and in no way means that you or anyone else will experience the same side effect, since the same medication affects people in different ways. Please always contact your physician.
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