Answer: Immunosuppresant
Step-by-step explanation:
Immunosuppresant or antirejection are the drugs that are used to suppress, or to reduce the strength of the immune system of the body. These drugs are used to prevent the rejection of transplanted organ by the immune system if the body like liver, heart or kidney. The body may show immune reactions when the organ or tissues from other organisms are transplanted to the host. Azathioprine, Mycophenolate, and Cytotoxic drugs are the examples of immunosuppresant drugs.
Mr. Lanning must take immunosuppresant to prevent the rejection of kidney being transplanted due to immune response.