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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May 13th
2004
12:32 PM
I have been on Synthroid for about 10 years. I've been taking dosages between 5 mcg's to my current 137 mcg's. I had my thyroid removed 3.5 years ago, due to an enlargement. Fortuantely, it was not cancerous.The side effects I have noticed have included weight gain, depression, anxiety, dry skin, and lethargy. None of these have been extreme, and my thyroid panals (TSH, Free T4, and T3) all come back within normal range when checked.Because I was at the low end of 'normal' my Endo increased my doasge from 112mcg to 125mcg to my current 137mcg. It's stopped my weight gain, and since i've been working out regularly for years, the weight is finally starting to come off.
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