and cherry bark and flavor is a common for cough medicines-- cherry bark is supposed to be soothing to the throat. (it was used by both europians and native americans)

most medicials got started with plants-- Foxglove was used for "dropsy"-- what we now call edemia-- an common drug of choice for cardiac edemia is still "digatalis"--from the latin name of foxglove. there are many traditional "treatments" that have real world uses.

Sometimes i think we are so limited in our thinking-- we don't think about eating bark (cinnamon) or minerals (salt, calcium carbonate) or molds (blue cheese). Or about how many common foods are or contain common poisons.. bitter almonds-- (the "seed" from inside a peach pit) or rhubarb (the leaves are poisonious).