We saw this old advertisement on The Chiseler. This low-proof “medicine” was first produced a century ago. Like so many other “health tonics” of the day, it had ethyl alcohol in it and various other herbs and such and was peddled as the cure to plenty of ailments. You ca read a bit more about this stuff at https://pt.wikipedia.org/wiki/Biot%C3%B4nico_Fontoura.
