https://techcrunch.com/2018/07/25/zbiotics-says-its-bioengineered-a-hangover-cure/

Y Combinator backed Zbiotics has spend two years developing what they’re billing as the world’s first genetically engineered probiotic. The startup’s initial product isn’t exactly world-changing but it might just save your day — given they’ve invented an elixir of ‘next day’ life: Aka a hangover cure.

Although you actually have to take it before — or, well, during — drinking rather than waiting until the moment of regretful misery when you wake up.