Concomitant use w/ adrenocorticoids, glucocorticoids or corticotrophin (ACTH); antimuscarinics eg, atropine; K-sparing diuretics eg, amiloride, spironolactone, triamterene or low-salt milk or K-containing medication or salt substitute; Ca salts; captoptril; digitalis glycosides; Na cycle exchange resins eg, Na polystyrene sulfonate; glucose-insulin or Na bicarbonate infusion; chronic laxative use; quinidine; vit B
12. Blood from blood bank. Not recommended in digitalized patients w/ severe or complete heart block. Not recommended in paed.