Important note to all Dracula fans - Coca-Cola was invented in 1886, and the story is set in 1897. This means you can authentically hint at coca-cola in any and all fanworks set around the book’s time period.
(not that it’s very impressive, since Dracula himself wouldn’t drink it, but certainly the American suitor can!)
Van Hellsing absolutely wired on classic cocaine coca cola defeating dracula
wait that means that cocain classic coca cola would exist in the castlevania series.