Concomitant use w/ ACE inhibitors may increase risk of angioedema. Combination w/ aliskiren is potentially associated w/ higher frequency of adverse events eg, hypotension, hyperkalemia & decreased renal function (including acute renal failure). Potentiated angiotensin II receptor blocking activity w/ other ARB. Increased systemic exposure of OATP1B1 & OATP1B3 substrates eg, statins. Co-administration w/ sildenafil or another PDE-5 inhibitor is associated w/ additional BP reduction. Concomitant use w/ K-sparing diuretics (eg, triamterene, amiloride), mineralocorticoid antagonists (eg, spironolactone, eplerenone), K supplements, or K-containing salt substitutes may lead to increased serum K & serum creatinine. Concomitant use w/ NSAIDs may lead to increased risk of worsening of renal function in elderly patients, vol-depleted patients (including those on diuretic therapy), or patients w/ compromised renal function. Risk of reversible increases in serum lithium conc & toxicity. Co-administration w/ inhibitors of OATP1B1, OATP1B3, OAT3 (eg, rifampin, cyclosporine) or MRP2 (eg, ritonavir) may increase systemic exposure to sacubitrilat or valsartan, respectively. Reduced C
max & AUC of furosemide; metformin.