It's most likely one of the fillers in the Synthroid tablets that's giving you those symptoms since the active ingredient, T4, is exactly the same in both. A generic is one option, and another is Tirosint which is a hypoallergenic gelcap without fillers. You might ask your doctor about that.
ive been on levoxyl for 8 yrs and been steady as a rock. changed to synthroid the end of may. (not by choice). it is awful. up one day down the next. shakes,anexiety, headache, blood pressure up, everyone tells me this is the alternative. i am going to try a generic till they release it again.
We're all having to deal with it. Levoxyl was recalled to the retail level, so the shelves were emptly as soon as the recall was published. They are saying that it could be 2014 before it's back.
Different manufactureres use different fillers (inactive ingredients) in their tablets, and people are sometimes allergic or sensitive to them. Brand name Tirosint is a gelcap with water as the only filler, so it's hypoallergenic. You could ask your doctor about that.
Also, a compounding pharmacy can make up your script with minimal fillers.