Immunostimulants, also known as immunostimulators, are substances (drugs and nutrients) that stimulate the immune system by inducing activation or increasing activity of any of its components. One notable example is the granulocyte macrophage colony-stimulating factor. ==Classification== There are two main categories of immunostimulants: ===Non-sp... Found on http://en.wikipedia.org/wiki/Immunostimulant
An agent that stimulates either innate or acquired immunity. In the U.S., immunotherapy is relegated to experimental medicine, but a number of plant substances are used in Europe as immunostimulants.
Found on http://www.swsbm.com/ManualsMM/MedHerbGloss2.txt