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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February 7th
2009
1:12 PM
I have been on Snythroid for 20 years. I had radiation treatment. I have experienced weight gain and most recently I think my hair is thinning. I take 1 0.15mg everyday except Sunday.I was reading a book that said the medication can cause loss of bone mass. I have been taking 1000 mg of Calcium a day. If you don't get those levels checked you will feel terrible! Take it from me! Thanks for sharing snythroid family
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