Herbal medicines are assuming large use in the primary healthcare of i
ndividuals and communities consistently with the growing interest in t
raditional and alternative systems of medicine in many developed count
ries. Consumer surveys show a positive public attitude to complementar
y medicine. The regulation of herbal medicines is characterized by lar
ge differences depending on the ethnological, medical, and historical
background of each country. The WHO Guidelines for the Assessment of H
erbal Remedies, adopted by the International Conference of Drug Regula
tory Authorities (Ottawa, October 1991), contain the basic elements of
legislation designed to assist those countries wishing to develop an
appropriate legislation and registration procedure for herbal medicine
s used. The WHO suggested that the different States should be urged: t
o give correct importance concerning the utilization of their traditio
nal systems of medicine; to make a systematic inventory and assessment
of the medical plants used by traditional practitioners and by the po
pulation; to intensify activities leading to cooperation between those
providing traditional medicine and modern healthcare, respectively, e
specially as regards the use of scientifically proven, safe and effect
ive traditional remedies. The goals of these suggestions are to facili
tate the scientific evaluation and the eventual integration of traditi
onal medicine into the national healthcare system, critically assistin
g an eventual rational use of traditional medicine through development
of technical guidelines and international standards. (C) 1997 The Ita
lian Pharmacological Society.