Raelynn - I think when we start worrying how many calories our toothpaste has, we've moved past the line of taking it too far.
Think about the cough syrup as the greater good. I doubt you're deriving any pleasure from it, and if it's a trigger food - we have some codine issues to discuss!
It's probably chocked full of sugar alcohols (like tequila) and I doubt it will do you much harm.
Congrats on getting married. When did I miss that annoucement!?!