BACKGROUND OF THE INVENTION
The Euphorbiaceae family is rich in plants with a long history of human medicinal applications [Watt, J. M. and M. G. Breyer-Brandwijk, "The Medicinal and Poisonous Plants of Sourthern and Eastern Africa," 2nd Ed., E. S. Livingstone Ltd., London, 1962, p. 426] [Morton, J.