This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Which of the following drug is not a pa of the triple therapy immuno suppression for post-renal transplant patients? 
Select and explain. 
A. Cyclosporine, B. Azathioprine, C. FK 506, D. Prednisolone
C: FK 506
Answer: C: FK 506 
Explanation: Triple therapy immunosuppression given to all post-renal transplant recipients for 0-3 months includes, a calcineurin blocker (cyclosporine or tacrolimus), an anti-proliferative agent (mycophenolate mofetil or azathioprine) and a coicosteroid such as predisolone. FK 506 is not a pa of 'triple therapy'. Ref: Bailey and Love Sho Practice of Surgery, 25th Edition, Page 1415; Neonatal and Pediatric Pharmacology: Therapeutic Principles in Practice By Sumner J. Yaffe, Page 674; Goodman and Gilman's The Pharmacological Basis of Therapeutics, 12th Edition, Chapter 35.