Immunosuppressors are medications used to suppress the immune system's response in various diseases, including autoimmune disorders and transplant cases. These drugs target various cell types, such as T-cells and B-cells, to suppress immune responses that may be harmful in such conditions. There are several synonyms for the term "immunosuppressor," including immunosuppressive agents, immunosuppressive drugs, immunomodulators, and immune inhibitors. These medications essentially change the way the immune system works and can have a plethora of side effects, including an increased risk of infections. While the use of such medications is essential in treating certain diseases, their use must be under the guidance of a medical professional.