Lisinopril vs Losartan
Both are first‑line antihypertensives that block the renin‑angiotensin system. Lisinopril is an ACE inhibitor; Losartan is an angiotensin receptor blocker (ARB). They have similar efficacy but different side effect profiles. This evidence‑based comparison covers everything you need to know.
Choose Your Blood Pressure Medication
Both are effective first‑line options. Choose based on your tolerability and clinical needs.
Comparison Table
| Feature | Lisinopril | Losartan |
|---|---|---|
| Drug Class | ACE inhibitor | Angiotensin II receptor blocker (ARB) |
| Mechanism | Blocks conversion of angiotensin I to II | Blocks angiotensin II at AT1 receptor |
| FDA Indications | Hypertension, heart failure, post‑MI[FDA] | Hypertension, diabetic nephropathy, stroke prevention[FDA] |
| Typical Starting Dose | 10 mg once daily | 50 mg once daily |
| Maximum Dose | 40 mg/day | 100 mg/day |
| Most Notable Side Effect | Dry, persistent cough (5‑20% of patients) | Significantly lower risk of cough |
| Angioedema Risk | Rare but serious (swelling of face/lips/throat) | Extremely rare |
| Effect on Potassium | May increase (hyperkalemia) | May increase (similar risk) |
| Effect on Kidney Function | Monitor creatinine, especially with renal artery stenosis | Similar monitoring required |
| Cost (30‑day supply, generic) | ~$10–$25 | ~$15–$35 |
| Pregnancy Category | Contraindicated (fetal toxicity) | Contraindicated (fetal toxicity) |
Both medications are equally effective at lowering blood pressure. The choice often depends on tolerability and specific patient factors.
Lisinopril vs Losartan – Pros & Cons
Lisinopril Advantages
- Proven benefit in heart failure and post‑MI
- Slightly lower cost
- Once‑daily dosing
- Long track record of clinical use
Losartan Advantages
- Significantly lower risk of dry cough
- Virtually no risk of angioedema
- Proven benefit in diabetic nephropathy
- Proven stroke prevention benefit
📌 Clinical Bottom Line
Both lisinopril and losartan are equally effective at lowering blood pressure and reducing cardiovascular events. Lisinopril is preferred for heart failure and post‑MI patients. Losartan is preferred when cough or angioedema risk is a concern. If a patient develops a persistent cough on lisinopril, switching to losartan is the recommended strategy. Learn more about hypertension management →
Frequently Asked Questions
Quick answers to common questions about lisinopril and losartan.
Both are equally effective at lowering blood pressure. Lisinopril (ACE inhibitor) and losartan (ARB) have similar efficacy. The choice often depends on tolerability – losartan has a significantly lower risk of dry cough.
Yes. If a patient develops a persistent cough on lisinopril, switching to losartan is recommended. The cough is not an allergic reaction and losartan has virtually no risk of angioedema. Always consult your doctor before switching.
They share some side effects (dizziness, hyperkalemia, kidney function changes). However, lisinopril causes a dry cough in 5‑20% of patients, while losartan has a significantly lower cough risk. Angioedema is rare with lisinopril but extremely rare with losartan.
Losartan has a better side effect profile regarding cough and angioedema. However, both are safe and effective when used appropriately. The choice depends on individual patient factors and tolerability.
Generic lisinopril is generally cheaper than losartan, though prices vary. Lisinopril generic: ~$10‑25 per month; losartan generic: ~$15‑35 per month. Check your insurance formulary for the best coverage.
No. Both are contraindicated during pregnancy due to fetal toxicity. Women of childbearing age should use effective contraception. If pregnancy is detected, discontinue immediately and consult your doctor.
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