Complementary/alternative medicine (CAM): often refers to a broad set of health care practices that are not part of a country’s own tradition and are not integrated into the dominant health care system. Other terms sometimes used to describe these health care practices include “natural medicine”, “nonconventional medicine” and “holistic medicine” (1).

Herbal medicine: plant derived material or preparations with therapeutic or other human health benefits, which contain either raw or processed ingredients from one or more plants. In some traditions, material of inorganic or animal origin may also be present.

Traditional medicine (TM): is the sum total of knowledge, skills and practices based on the theories, beliefs and experiences indigenous to different cultures, whether explicable or not, used in the maintenance of health as well as in prevention, diagnosis, improvement or treatment of physical and mental illnesses (1).