Lisinopril

Adults: 10 mg once daily initially, titrated up to 20–40 mg/day based on response.

Dry cough, hyperkalemia, dizziness, angioedema (rare but emergency).

Pregnancy (all trimesters), prior angioedema, bilateral renal artery stenosis, severe aortic stenosis.

Lisinopril blocks conversion of angiotensin I to angiotensin II, reducing vasoconstriction and aldosterone release. Improves survival post-MI and in heart failure with reduced ejection fraction.