It is.
Brewer Yeast for B12, meadowsweet for aspirin and settle your stomach , mint to soothing the tummy and freshen the breath, all in a lightly alcoholic (small beer) liquid to re-hydrate and give a light dose of ethanol.
That is a hangover remedy if I have ever heard one. All that is lacking is the plate of scrambled eggs with hot sauce and some dry toast.
LOL
I always found the best hangover remedy for me was to find an open leftover beer, without a cigarette butt in it, and drink some of that flat warm swill.
That’s the only thing that ever worked for me. Thank goodness that’s all 4+ decades behind me. :)