Long before the introduction of modern medicine and westernized methods of medications, the Filipinos or the indigenous inhabitants of"the Philippines, have widely used herbs in the treatment of animal and human disease conditions. Trial and error means of curing disease through the use of herbs was the main method by which "herbolarios" cured their patients. The knowledge and skills obtained on the curative application of any herb has since been handed down from practitioners to their offsprings or from generation to generation. Through these years, herbs that were effective were kept alive and used while the ineffective ones were soon forgotten.