Aha. You need Mucinex, or some other guaifenesin-only product, in concert with plenty of water.

Interestingly, there's a putative fibromyalgia treatment out there that includes massive doses of the the same drug (as well as complete 100% avoidance of salicylic acid in all forms). Seems a weird connection to make, but I imagine there's some relatively sound science behind it somewhere.