Chocolate as cough medicine

According to the new study published in FASEB journal, Chocolate's ingredient, theobromine, could stop a persistent coughs. What a delightful news! I'd better brewed some choc concoction right away... to bad I just found this out:(

ps: I know that tea also contains theobromine, but hey.. nothing beats Chocolate
pps: It just happened I bought 4 bars of Droste's new Barettini puur chocolate yesterday.. glad to follow my guts:)
pps: according to the nutrient data lab of ARS, 100gr Cocoa power contains 408 mg of theobromine, while the same amount of brewed tea contains a mere 2 mg.