Jinnera
From Tardis Wiki, the free Doctor Who reference
Jinnera, or Jinnen Bean, was a common staple amongst the Tribe of the Three Valleys. It was typically made into a drink tasting of coffee and chocolate. Too much Jinnera would cause the muscles to relax, an overdose would make ones heart simply stop beating. Two cups was the limit in an unspecified length of time. (PROSE: The Price of Paradise)