Just checked the wiki for confusing texts and didn't see anything of note. The Elixir of Galade is a 'Common item' and are: "A frequent drop or obtainable from merchants." Maybe this might have been the confusing part. If not, quote where and I'll see what I can do about making it less confusing.
As subgenius mentioned, Elixir's are most commonly found from enemies in the Ashen Cape, Ashen Waste, and Sunken Citadel, as well as, found in chests in those locations.