Try sucking on ice cubes during the day to help with your cough. I find it works just as well as cough drops. That plus the cough syrup at night may give you the rest you need.

BTW--- I was given the same Rx for bronchitis a few months ago. I took it once and poured it down the drain. I couldn't deal with the way it made me feel. I have 3 kids and I'm not comfortable being all doped up. I'd rather go without sleep than not be able to hear one of them get up in the middle of the night.

Hope you feel better soon!