## Core Concept
The 'Triple Therapy' immunosuppression regimen for post-renal transplant patients typically involves a combination of medications to prevent rejection. This regimen often includes a **calcineurin inhibitor** (such as cyclosporine or tacrolimus), an **antiproliferative agent** (like mycophenolate mofetil or azathioprine), and a **corticosteroid** (such as prednisone).

## Why the Correct Answer is Right
The correct answer, , is not part of the traditional 'Triple Therapy' immunosuppression regimen. Traditional triple therapy usually consists of a calcineurin inhibitor, an antiproliferative agent, and a corticosteroid. is an mTOR inhibitor, which is sometimes used as part of immunosuppressive regimens but is not a standard component of the traditional 'Triple Therapy'.

## Why Each Wrong Option is Incorrect
* **Option A:** (Cyclosporine) is a calcineurin inhibitor, which is a standard component of the 'Triple Therapy'.
* **Option B:** (Mycophenolate mofetil) is an antiproliferative agent, another standard component.
* **Option D:** (Prednisone) is a corticosteroid, the third standard component.

## Clinical Pearl / High-Yield Fact
A key point to remember is that while traditional 'Triple Therapy' includes a calcineurin inhibitor, an antiproliferative agent, and a corticosteroid, modern immunosuppressive strategies may vary and include other agents like mTOR inhibitors, especially in cases of specific patient needs or side effects.

## Correct Answer Line
**Correct Answer: D. **