allegra is an antihistamine and some people do experience side effects but not low blood sugar. if you are feeling jittery like caffeine each time you take allegra then perhaps this is not the medication for you.
is low blood sugar a side effect of allegra. i feel shaky inside like a have had too much caffeine. i have felt this a lot since i have been taking allegra. could this be a side effect? i have made sure i have taken it with food.