Plonk it on a shelf and try it again when you're desperate, and potentially when your tastebuds have changed (if you're still in the stages of regaining your tastebuds from being off smokes).
Some juices never get better, others you might be surprised what leaving it on a shelf(or in drawer) for a few months does to it.
I don't throw any juice away, the only juice i'd never touch again is one "a friend" brought over and we both agreed it was like cat piss, it was like having liquid ass for a juice, in smell and experience, you'd never subject anyone to that if you liked them.