REN and chronic kidney disease: In addition to the two reviews included for comparison in the present study, a German study developed a renally relevant drug list (RRD-list) of 16 drug groups from a prospective outpatient nephrology clinic evaluation based on pharmacists review of medications, drug-therapy problems and nephrologists’ recommendations [12, 26] The RRD-list differs from the present study as it included medications used for treatment of CKD-related diseases such as antacids, immunosuppressives, diuretics, renin–angiotensin–aldosterone system inhibitors (RASI) and antihypertensives.