“…As widely described in literature [7], the complex renin-angiotensin system (RAS) plays a crucial role in the pathophysiology of several morbidities, such as hypertension, diabetes mellitus, myocarditis [8], heart failure and myocardial infarction, where the use of RAS blockers is essential for management. ACE inhibitors (ACEIs) and/or angiotensin II receptor blockers (ARBs) delay or prevent the onset of heart failure in asymptomatic patients with left ventricular systolic dysfunction and, importantly, reduce both mortality and morbidity of patients with heart failure and reduced ejection fraction.…”