Allergy to class/drug
Anuria, severe renal dysfunction
Hyperkalemia
Concomitant use of antikaliuretic agents, potassium supplementation/salt substitutes, or other potassium-sparing agents
Severe liver disease
Triamterene
Acebutolol
Sildenafil
Aliskiren
Hydralazine
Losartan
Atenolol
Valsartan