|The term Magic Bullets is a translation of
the German word Zauberkugeln. It is believed that Ehrlich
took that term from the first German opera Der Freischütz
by Carl Maria von Weber. In that opera a young man needed to shoot the
target successfully to be able to marry his bride. To achieve this
he made a pact with the devil and got a magic bullet that would automatically
hit the target.
That found its way to the target like Ehrlichs compounds were planned to.