<prompt> Drug helpful in Chronic kidney disease?Beta blockerAmlodipineACE inhibitorTelmisartan  <response>: Ans. c ACE inhibitorRef : Harrison 19th ed. 2478-79 ACE inhibitors may slow the progression of renal disease in CRF. ACE inhibitor therapy generally lowers systemic blood pressure, does not alter renal function and decreases proteinuria in patients with CRF. The reduction in proteinuria appears to be variable and may depend on pre-treatment glomerular haemodynamics andor the activity of the renin- angiotensin-aldosterone system. 