Other image here from the US NIH history archives about the product. This one promises that Neuralgine contains no morphine, opium, or cocaine.
So what does it contain? They didn’t have to tell you, back then.

Other image here from the US NIH history archives about the product. This one promises that Neuralgine contains no morphine, opium, or cocaine.
So what does it contain? They didn’t have to tell you, back then.

https://americanhistory.si.edu/collections/object/nmah_1216339
Seems like it was this in it. https://en.wikipedia.org/wiki/Acetanilide
Jesus.