Hypersensitivity/angioedema. Not recommended in dual blockade of renin-angiotensin-aldosterone system; primary aldosteronism. Risk of hypotension in vol-depleted patients eg, by diuretic therapy, dietary salt restriction, dialysis, diarrhea or vomiting, severe renin-dependent HTN; symptomatic heart failure w/ or w/o associated renal insufficiency; severe heart failure eg, use of high-dose loop diuretics, hyponatraemia or functional renal impairment; ischemic heart or cerebrovascular disease; mitral valve stenosis, left ventricle outflow tract obstruction eg, aortic stenosis or hypertrophic cardiomyopathy; collagen vascular disease; cough; DM, intercurrent events, dehydration, acute cardiac decompensation, metabolic acidosis. Anaphylactoid reactions in patients dialysed w/ high-flux membranes, during LDL apheresis w/ dextran sulfate or desensitisation treatment eg, hymenoptera venom. Perform routine monitoring of serum K & creatinine. Closely monitor diabetic control during 1st mth of treatment. Black patients. Galactose intolerance, glucose-galactose malabsorption, Lapp lactase deficiency. Discontinue 1 day prior to surgery/anaesth. Not to be initiated w/ sacubitril/valsartan until 36 hr after last dose. Not to be used concomitantly w/ angiotensin II receptor blockers in patients w/ diabetic nephropathy. Not recommended in combination w/ K-sparing diuretics (eg, spironolactone, eplerenone, triamterene, amiloride), K supplements or K-containing salt substitutes; lithium. Concomitant use of other NEP inhibitors eg, racecadotril; mTOR inhibitors eg, sirolimus, everolimus, temsirolimus; immunosuppressants; allopurinol or procainamide; drugs increasing serum K (eg, heparin, co-trimoxazole). May affect ability to drive & use machines. Renal impairment; hemodialysis & recent kidney transplant patients. Hepatic failure. Not recommended during 1st trimester of pregnancy & lactation. Not recommended in childn & adolescents <18 yr. Elderly >70 yr.