Bebeerine

from The Collaborative International Dictionary of English v.0.48

Bebeerine \Be*bee"rine\, or Bebirine \Be*bi"rine\
   (b[-e]*b[=e]"r[i^]n or -r[=e]n), n. (Chem.)
   An alkaloid got from the bark of the bebeeru, or green heart
   of Guiana ({Nectandra Rodi[oe]i}). It is a tonic,
   antiperiodic, and febrifuge, and is used in medicine as a
   substitute for quinine. [Written also {bibirine}.]
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Buxine \Bux"ine\, n. (Chem.)
   An alkaloid obtained from the {Buxus sempervirens}, or common
   box tree. It is identical with {bebeerine}; -- called also
   {buxina}.
   [1913 Webster]