Nkllonian lava extract was an illegal drug at the time of the Galactic Empire. Extracted from the metal xonolite consumed by Mustafar's Jawenko lava beast, the drug was often transported to Nkllon, where it became an underworld craze.
When taken, the Nkllonian lava extract enters the users bloodstream and liquifies their internal organs. The lava extract could not be taken at its fullest, for if one used one hundred percent of it at once, they would spontaneously combust. This deadly side effect was famously revealed when it happened to a male Balosar from Coruscant.
- Boba Fett: Pursuit (First mentioned)