Appropriate Lisinopril Dosing

Introduction to Lisinopril Dosing

The American Heart Association recommends an initial daily dose of lisinopril of 2.5-5 mg once daily, with gradual titration to higher doses as needed 1
The maximum recommended dose of lisinopril is 20-40 mg once daily, not twice daily, as stated by the American College of Cardiology 1

Higher than recommended doses of lisinopril increase the risk of adverse effects such as hypotension, worsening renal function, and hyperkalemia, according to the American Heart Association 2
The European Society of Cardiology notes that ACE inhibitors occasionally cause worsening of renal function, hyperkalaemia, symptomatic hypotension, cough, and rarely, angioedema - risks that would be amplified with excessive dosing 3
Doubling the maximum recommended dose of lisinopril could lead to dangerous hypotension, especially in patients also receiving diuretics or with volume depletion, as warned by the American College of Cardiology 4
If blood pressure control is inadequate with maximum lisinopril dose (40 mg once daily), guidelines from the American Heart Association recommend adding a different class of antihypertensive rather than exceeding the maximum dose 2
For heart failure patients requiring additional renin-angiotensin system blockade, the European Society of Cardiology suggests adding an aldosterone antagonist (such as spironolactone) would be more appropriate than exceeding the maximum lisinopril dose 3

For patients with heart failure, the target dose of lisinopril is 20-40 mg once daily, with careful titration from lower starting doses, as recommended by the American College of Cardiology 1
Patients should be monitored for hypotension, worsening renal function, and hyperkalemia, especially when using doses at the higher end of the recommended range, according to both the European Society of Cardiology and the American Heart Association 2, 3