No more so than any other source of pure sugar... It depends, of course, on how many you eat!
Whether candy, dextrose tabs, or a fancy gel, it's all in administration.
If you overdo it, you'll get a nasty spike. Depending on how low, I eat enough to raise my BG to roughly 100. I figure that by combining my correction factor and IC ratio to get a BG delta to Carb ratio.
IMPORTANT: This is far from exact. IC and correction factors are not static parameters; they depend on things like BG level, as well as a host of other things.
Caveats aside, what ya gonna do? Gotta have some way of determining how much to correct with.
In my case, my CF is 1U per 10 mg/dl, IC is 1:4. So, very roughly, 4 grams of carbs raise my BG 10 mg/dl. I've found this mostly holds within +/- 20%.
So, if I'm @ 50, I want to get to 100, so ((100-50)/10)*4 = 20g. For that hypo I'd pop 20 skittles, then check BG at 15 and then again at 30 minutes. Rinse and repeat as necessary.