What do you sup on those endless flights ?
Over the years I learned to avoid any gassed drinks even my terrestrial Asbsinthe and soda or Gin and Tonics etc, as the body expands anyway at altitude and less gas better.
A side form needing to pee several times Bangkok to Europe 9-12 hrs+ depending if CDG CPH etc
I now go for the Bloody Mary as 4 of my five a day/flight.
Will sometimes have a single small red wine if vealsteak or beef on the menu usually just water.
Even the tomato juice Worcester and Tabasco dehydrate as do peanuts , all nuts and most food even tea coffee Coke and all juices so water last few hours only.
On London City to Prague the stewards usually bung me, and all boozers 2 miniatures hourly and a can of Tom , I think the word got out that I gave a stewardess a leftover 500 Czech crown ($15) "tip" once , never had better service since Brutish Caledonian Swissair folded.
Cheers from Trout Hall and Danzka tho I think BA its budget juice and Smirnoff
I do like olives and fresh mint but not in Bloody Mary which for me must have Lime Tabasco Worcester Sauce, I crack black pepper at home and stir with a celery optional.