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Kidney Diseases

Diuretics and Kidney Damage



Do diuretics cause damage to the kidneys?


Diuretics should not actually damage the kidneys (except in the case of uncommon allergic reactions, especially to sulfa-containing diuretics such as Lasix).  However, by removing water from the circulation, diuretics can raise the levels of BUN and creatinine, which are commonly-used measures of kidney function.  When this happens, the BUN and creatinine should go right back down to their previous levels when the diuretic is stopped. 

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Response by:

Mildred   Lam, MD Mildred Lam, MD
Associate Professor of Medicine
School of Medicine
Case Western Reserve University