A person’s immune system identifies and attacks nearly everything that is different from various substances that remain present in a person’s body. The immune system doesn’t differentiate between transplanted organs and damaging substances, such as viruses, fungi, and bacteria. Hence, a person’s immune system does respond to his new kidney in the form of a foreign substance. And so, it is required to be eliminated.The immunosuppressants list is:Antifungal medicationsTacrolimusCyclosporineSirolimusMycophenolate mofetilDiureticsPrednisoneAzathioprineDaclizumab and BasiliximabOKT3AntibioticsAntiviral medicationsAnti-Ulcer medications