ACE and Hyperkalemia: Aldosterone antagonists (eg, spironolactone, eplerenone) with concurrent potassium conserving drugs (eg, ACE inhibitors, ARBs, amiloride, triamterene) without monitoring of serum potassium (risk of dangerous hyperkalaemia ( >6.0 mmol/L); serum potassium should be monitored regularly (ie, at least every 6 months))