Practice Point 4.1.1:
Treat kidney transplant recipients with T2D and an eGFR ≥30 mL/min/1.73 m² with metformin according to recommendations for patients with T2D and CKD.

Practice Point 4.1.4:
Monitor patients for vitamin-B12 deficiency when they are treated with metformin for more than 4 years.

Practice Point 4.1.2:
Monitor eGFR in patients treated with metformin. Increase the frequency of monitoring when the eGFR is <60 mL/min/1.73 m².

Practice Point 4.1.3:
Adjust the dose of metformin when the eGFR is <45 mL/min/1.73 m², and for some patients when the eGFR is 45–59 ml/min/1.73 m2.