Mélissa Gagné · 7 years ago
Hello, Synthroid is a thyroid hormone substitute that is necessary for metabolism. This medication is not known to increase blood sugar levels. Moreover, according to a reference consulted, it would even help to increase insulin secretion in the blood. Therefore, one would expect a decrease in blood sugar. I think the best thing to do is to continue to monitor your blood sugar levels and talk to your diabetes doctor if you notice a change. I look forward to hearing from you!