Losartan Dosing for Hypertension Management

Initial Dosing and Titration Strategy

• The European Society of Cardiology recommends losartan 150 mg daily as a target dose in heart failure contexts, with a dose-response relationship showing higher doses of renin-angiotensin system blockers provide greater benefit 1, 2, 3, 4
• The American College of Cardiology and American Heart Association acknowledge 150 mg as a target dose in heart failure contexts, with the FDA-approved maximum dose remaining 100 mg daily 5

Combination Therapy and Blood Pressure Targets

• The European Heart Journal recommends combination therapy with a diuretic as initial therapy when blood pressure is ≥140/90 mmHg, with losartan and hydrochlorothiazide as the preferred combination 6
• The European Society of Cardiology recommends a target systolic blood pressure of 120-129 mmHg in most adults with hypertension, provided treatment is well tolerated, with the "as low as reasonably achievable" principle applied in cases of poor tolerability 6
• The American Heart Association recommends a target blood pressure of <130/80 mmHg for patients at increased cardiovascular risk, such as those with stage A heart failure 7

Special Considerations

• The European Heart Journal suggests taking losartan at the most convenient time of day to establish a habitual pattern and improve adherence, with no evidence supporting preferential morning versus evening dosing for cardiovascular outcomes 6
• The American College of Cardiology recommends actively titrating losartan to 100 mg daily unless contraindicated, as many patients remain on suboptimal doses 5
• Resuming losartan as soon as possible after surgery is recommended, as delaying resumption of ARBs has been associated with increased 30-day mortality risk, and abrupt withdrawal should be avoided to prevent rebound hypertension 10