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NCI Dictionary of Cancer Terms


immunosuppressive agent  listen  (IH-myoo-noh-suh-PREH-siv AY-jent)

  An agent that decreases the body’s immune responses. It reduces the body’s ability to fight infections and other diseases, such as cancer. Immunosuppressive agents may be used to keep a person from rejecting a bone marrow or organ transplant. They are also used in the treatment of conditions marked by overactive immune responses, such as autoimmune diseases and allergies.