A substance that weakens the immune system, used to prevent the body from attacking new organs or to treat autoimmune diseases.
The doctor prescribed immunosuppressive drugs to reduce the risk of the patient's body rejecting the transplanted organ.
Something that reduces the activity of the immune system, which can help in some health conditions but may also make a person more likely to get sick.
The patient needed to be cautious about infections due to the immunosuppressive therapy they were undergoing.