Per WebMD, its listed elsewhere too.

Infrequent side effects of Synthroid oral:

High Blood Pressure
Weight Loss

Sorry, I missed the second page and didn't see that the Synthyroid had already been suggested...

I don't want to be an alarmist but I developed neuropathy when I was taking Amlodipine (Norvasc), I don't know if it caused it because other meds trigger it too for me but it did get somewhat better when I stopped. If your neuropathy gets worse consider that it might be playing a role, its a listed rare side effect. Don't eat a bunch of grapefruit or drink a lot of the juice, it isn't supposed to affect the metabolism of that particular calcium channel blocker but I think it did for me.

judi