Quote from a famous herbalist teaching Appalachian medicine. “Wild cherry bark acts as stimulating expectorant for lung congestion and coughs”. (Prunus serotina).
“It relieves symptoms of inflammation and irritation caused by cold, bronchitis, and pneumonia, and also reduces fevers.” “It has a sedating effect on the nerves and heart, making it effective treatment of fevers, heart palpitations and general weakness. It can be used as a sedative for restlessness and insomnia caused by cold symptoms.”
Cherries, peaches and apples are all in the same plant family. All of them contain “Hydrocyanic compounds”, wild cherry trees foremost, peach trees second.
The reason you buy cherry flavored cough syrup... 100 years ago you could go to a pharmacy and buy “cyanide water” for a cough. It was made from cherry bark, it had a cherry flavor. It contained cyanide derived from cherry bark. Big Pharma built on this for 4 generations, everything is cherry flavored.
When digested these “Hydrocyanic compounds” from cherry trees are converted to cyanide (parts per million, not a lethal dose) in our bodies. It’s a suppressant of our muscular system. It suppresses coughs!
Never let goats feed on cherry tree or peach leaves in the fall. These hydrocyanic compounds concentrate in the leaves in the fall. The cyanide is strong enough to kill goats and sheep if they eat enough
Long story short… Cherry bark has a long history as a cough suppressant in folk medicine. It’s still used to this day by herbalists in cold and flu formulas.