Aspirin may reduce the diuretic effect of 
bumetanide, 
furosemide, and piretanide, and the combination of 
aspirin and 
furosemide may increase the risk of acute 
renal failure and salicylate 
toxicity. The risk of ototoxicity with high doses of salicylates may theoretically be increased by loop 
diuretics. 
 The 
clinical significance of this interaction is unclear. However, 
aspirin should be avoided in patients with recurrent hospital admissions for worsening heart failure. Be aware that 
renal impairment and otoxicity are a possibility in patients receiving high dose of salicylates, and consider increasing monitoring for these effects.