May delay absorption w/ Al & Mg hydroxide antacids. Increased risk of renal impairment & hyperkalemia w/ ACE inhibitors (eg, captopril, fosinopril, imidapril, enalapril) & AIIA (eg, losartan, telmisartan). Antagonize the effect of ACE inhibitors & AIIA. Increased risk of GI sides effects including ulceration or hemorrhage w/ alcohol. Increased adverse effects w/ aspirin or other NSAIDs. May exacerbate cardiac failure, reduce GFR & increase plasma levels of cardiac glycosides (eg, digoxin). Increased risk of nephrotoxicity & hyperkalemia w/ ciclosporin & tacrolimus. May induce delay of decrease in absorption w/ colestipol & cholestyramine. Increased risk of GI bleeding & ulceration w/ corticosteroids. May enhance exposure & toxicity w/ CYP2C9 inhibitors (eg, voriconazole). May lead to compromised efficacy w/ CYP2C9 inducers (eg, rifampicin). Increased risk of nephrotoxicity & antagonism of effect of diuretics (eg, thiazides, furosemide). Reduced excretion of lithium & methotrexate. Increased risk of adverse renal effects w/ paracetamol. Increased exposure to phenytoin. Increased risk of hyperkalemia w/ K-sparing diuretics & aldosterone antagonist; trimethoprim. Increased risk of convulsions w/ quinolones. Increased risk of GI bleeding w/ SSRIs (eg, fluoxetine, citalopram, sertraline); warfarin. Increased risk of hematological toxicity w/ zidovudine.