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Metformin for CKD? A contrarian point of view. |
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Nephron Clinical Practice (Nye and Herrington): Critical review of this literature calls into question the validity of these claims, with metformin usually acting as an ‘innocent bystander’ in acutely unwell patients with conditions well recognised to precipitate lactic acidosis such as sepsis or hypovolaemia. In fact, the evidence supports the safe use of appropriate doses of metformin in patients with chronic stable renal impairment, and highlights the important possible greater risks of the alternatives, most notably severe hypoglycaemia in patients taking sulphonylureas and/or insulin and fluid retention in patients taking a thiazolidinedione.
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