Advagraf is a prescription medication primarily used in the field of organ transplantation to prevent the body's immune system from rejecting a transplanted organ, such as a kidney, liver, or heart. It contains the active ingredient tacrolimus, which is a type of drug known as an immunosuppressant. By inhibiting the activity of certain immune cells, Advagraf reduces the likelihood of organ rejection. This medication is typically administered in capsule form and is taken once daily, providing a more convenient dosing schedule compared to some other immunosuppressants that require multiple doses throughout the day. It is crucial for patients taking Advagraf to adhere closely to their prescribed dosage and to undergo regular monitoring by their healthcare provider to manage potential side effects and ensure the optimal functioning of the transplanted organ.