What green liquid in about 1969 would have been prescribed for a nervous stomach?

It could be a number of things. Belladonna is a good suspect. It could also have been Paragoric. My mother used to give me Paragoric for stomach aches when I was a kid (I was born in 66 so we are talking late 60's to 70's). I remember it tasted so nasty!!! She used to put it in orange juice so I have no idea what the color was and it was nasty bitter so that it ruined me on orange juice for many years! lol But man, if you had a bad bellyache, it took the pain right away! I used to get really bad gripey stomachaches from nerves and illness when I was little. Hyoscyamine sulfate is another possibility-.it is one of the principal anticholinergic/antispasmodic components of belladonna alkaloids. It is used to relax muscles in the digestive tract. Donnatol elixir has hyoscyamine, phenobarbitol and scopalamine and could be a possibility as well. It would be hard to find out unless you could get access to old records but I doubt any records that old could be found. If you know of an older pediatrician, you might be able to find out. Maybe Chuck 1957 will know as he is a retired pharmacy tech?

Bitter tasting? It might have been belladonna elixir.