I Cure Fits!
"Dr." H. G. Root was a New York chemist whose remedy (not named in most of his adverts) was called Elepizone. According to Martindale's Extra Pharmacopaeia of 1892, it was made of “bromide of sodium 30 grains, bromide of ammonium 30 grains, bromide of potassium 20 grains, tincture of nux vomica 15 minims, with caramel q.s. to 1 ounce of wintergreen water.” This was nothing very different from the drugs prescribed by the medical profession. After the early 1890s, Root dropped the title "Dr." from his advertising and variously appeared as Mr. H.G. Root, H.G. Root Esq or just plain H.G. Root.
"I CURE FITS.
When I say I cure, I do not mean merely to stop them
for a time and then have them return again. I mean a
radical cure. I have made the disease of FITS, EPILEPSY, or
FALLING SICKNESS a life-long study. Because others have
failed is no reason for not now receiving a cure. Send at once
for a Treatise and a Free Bottle of my infallible remedy. Give
address in full. It costs you nothing for a trial and it will cure.
Address Dr. H. G. ROOT, 5, Plum Tree Court, Farringdon-
Source: The Illustrated Police News, Saturday 9th February 1889