Honestly, until I saw this ad in the July 1918 issue of Delineator magazine I'd never heard of this product. Surprisingly I guess it's still being made. You can read about it here and here. Not really interesting enough to post any information other than it was "invented in the 1850s by James Crossley Eno of Newcastle, the Fruit Salt sold like hotcakes to sailors looking for something to keep them healthy on long journeys." However, I love the illustration, which sadly has no signature.
And what is an aperient? Not a word I recall ever hearing. Well, it's a drug used to relieve constipation. So, there you go. Learned something new today. Not a total waste.