Certainly wouldn't be a wise use of your drugs....yes, original Coca-Cola did use it, but it's not very bioavailable orally, and besides....that just sounds like it'd taste too fucking foul to down a whole drink containing enough cocaine to catch a high off of....
I wouldn't do it personally, mainly for the fact it'd take a whole lot more to get high....intranasal would be my suggestion....but to each his own....
Let us know how it goes with your tasty beverage OP lol...
-PA