Toxicological Trivia from February 01, 2010: Copalchi (Coutarea latiflora, family Rubiaceae) is a medicinal plant. The bark contains a bitter heteroside (coutareosido) which showed hypoglycemic action in rabbits. Its popular use is as an adjunct in the treatment of diebetes mellitus type II. It is a native shrub from:
a) Mexico and Colombia;
b) Venezuela and Panama;
c) Peru and Bolivia.

Correct Answer a. See article in Spanish: About hepatotoxicity of Copalchi (Coutarea latiflora, family Rubiaceae)