Definition Absolute Contraindications Angioneurotic edema: even if not due to ACE Inhibitor Pregnancy (serious Teratogenicity – black box warning)  Renal Artery Stenosis  ACE Inhibitor related Allergic Reaction Relative Contraindications Aortic Stenosis  Hypertrophic Cardiomyopathy Subspecialty General Keyword history 91%/2012