Exploring Immunomodulation: Phytoconstituents and Medicinal Plants in Immune System Alteration

The alteration of the immune response, which can either increase or decrease the immune responsiveness, is known as immunomodulation. Since ancient times, nearly every culture has relied on medicinal plants as a source of medicine to alter the immune system. The immunomodulatory properties of several medicinal plants have been investigated, and it has been found that animals' immune systems are altered through a variety of mechanisms. The phytoconstituents and medicinal plants used as immunomodulators will be discussed in detail in this review. This article highlights the types of immunomodulators, their mechanism of action, and their drugs including those on which the clinical trial is ongoing and the FDA approved as well as the patented drugs mentioned.