Dragonsalt is a highly addictive illegal drug in the Emelan Universe. It is sold as a powder that can be mixed with a liquid. Dragonsalt causes the user to feel "dreamy" and over time waste away, although it is not clear if the drug causes the user to lose weight or if it is a consequence of forgetting to eat while high. Non-magic users gain strength and feel they "think better" when they ingest it.
The mages of the University of Lightsbridge developed a spell to detect whether a magic user is on dragonsalt by analyzing the magic traces from an addicts spell. This detection spell is used by harrier-mages. Duke Vedris IV believed it to be the most vile drug ever brewed and decreed the penalty for having it was ten years in the granite quarries.The penalty for selling dragonsalt was to have your guts ripped out on Penitence Hill.