Letters
Metformin in renal disease
Scant evidence on the effectiveness of metformin in type 2 diabetes
BMJ 2015; 350 doi: https://doi.org/10.1136/bmj.h2650 (Published 19 May 2015) Cite this as: BMJ 2015;350:h2650
- Thomas L Perry, general internist and university professor1
- 1Department of Anaesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, BC, Canada V6T 2B5
- tom.perry{at}ti.ubc.ca
Metformin is remarkably safe compared with alternative drugs for type 2 diabetes, although it does cause at least chemical vitamin B12 deficiency.1 2 The “problem” of reduced glomerular filtration can be seen as an advantage for drugs like metformin that are eliminated through the kidney. Reduced …
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