Hypersensitivity to bisulphites. Not recommended in dual blockade of renin-angiotensin-aldosterone system & primary aldosteronism. Bilateral renal artery stenosis or artery stenosis to solitary kidney; hypotension; aortic or mitral valve stenosis or obstructive hypertrophic cardiomyopathy; severe CHF or underlying renal disease including renal artery stenosis. Excessive BP decrease in patients w/ ischemic cardiopathy or cerebrovascular disease. Anaesth & surgery. Periodically monitor serum K & creatinine levels; electrolytes. Monitor BP in patients on hemodialysis. Black patients. Not to be used concomitantly w/ ACE inhibitors in patients w/ diabetic nephropathy; heart failure. Not recommended in combination w/ ACE inhibitors, K-sparing diuretics eg, spironolactone; mineralocorticoid-receptor antagonist; medicinal products w/ BP-lowering effects. Concomitant use w/ K-sparing diuretics, K supplements, K-containing salt substitutes or other medicinal products increasing K level eg, heparin. Not to be taken by patients w/ galactose intolerance, total lactase deficiency or glucose-galactose malabsorption. May affect ability to drive & use machines. Very severe or end-stage renal impairment (CrCl <15 mL/min); recent kidney transplantation. Not recommended during 1st trimester of pregnancy & lactation. Childn w/ GFR <30 mL/min/1.73 m
2; childn & adolescents <18 yr. Elderly ≥75 yr.