Nov 20, 2017It all depends what kind of cough drops you're using, but I'd imagine the biggest drawback is your sugar intake. Some cough drops have DXM in them, which if you took every day I'm sure you would build a tolerance to. Ricola cough drops I know are just menthol, sugar, and herbs, and I'm sure you could built a tolerance to the menthol but I don't think just finishing off your bag would come even remotely close to that.