If I remember correctly, commercials for Doan’s Pills also included the phrase, “A mild diuretic to the kidneys” (where else?). Presumably, the back aches they were trying to alleviate were somehow caused by kidney disease that could be remedied this way. Maybe they were a mild diuretic. Since I was just a whipper snapper when I heard those commercials, I didn’t accumulate any empirical evidence as to how they worked. Or how well they worked.