The two medicines that should be administered before the transplantation surgery to prevent the body from reacting to the newly implanted organ are immunosuppressant medicines and corticosteroid medicines.
Immunosuppressant medicines work by suppressing the immune system's response to foreign cells, which can help prevent rejection of the transplanted organ. Corticosteroid medicines are also used to suppress the immune system and reduce inflammation, which can help prevent the body from attacking the newly implanted organ.
Antiviral, antibiotic, and antifungal medicines are used to treat infections caused by viruses, bacteria, and fungi, respectively. While these medications may be used in certain cases after a transplantation surgery, they are not typically used as a preventative measure to prevent rejection of the transplanted organ.