Promptly administer appropriate therapy eg, SC epinephrine/adrenaline soln (0.3-0.5 mL) if tongue, glottis, or larynx, likely to cause airway obstruction is involved. Discontinue use & not to be re-administered if angioedema occurs. Temporarily discontinue use if hypotension persists. Not to be used as 1st-line treatment of HTN; in patients w/ known history of angioedema related to previous ACE inhibitor or ARB therapy, or in patients w/ hereditary angioedema. Not to be initiated until 36 hr after last dose of ACE inhibitor therapy. Consider down-titration in patients who develop a clinically significant decrease in renal function. May increase blood urea & serum creatinine levels in patients w/ bilateral or unilateral renal artery stenosis. Increased susceptibility to develop angioedema in Black patients. Correct Na &/or vol depletion before starting treatment. Reduce dietary K or adjust dose of concomitant medication if significant hyperkalemia occurs. Monitor serum K especially in patients w/ risk factors eg, severe renal impairment, DM, hypoaldosteronism or receiving high K diet. Not to be administered w/ ACE inhibitor, aliskiren, ARB. Severe renal impairment (estimated GFR <30 mL/min/1.73 m
2) in patients w/ essential HTN. Not recommended in severe hepatic impairment (Child-Pugh C). Female patients of childbearing potential should use contraception during treatment & for 1 wk after last dose. Not to be used during pregnancy. Not recommended during lactation. Ped patient <18 yr.