Amlodipine and lisinopril are two of the most prescribed blood pressure medications on the planet — each taken by tens of millions of people daily. They are both effective, both available as very inexpensive generics, and both first-line options in major treatment guidelines. But they work in completely different ways, suit somewhat different patients, and have very different signature side effects. Here is the comparison worth reading before your next doctor’s appointment.
Two different mechanisms
Amlodipine (brand name Norvasc) is a calcium channel blocker. It works directly on the muscle in your artery walls, preventing calcium from entering the cells that make vessels constrict. The arteries relax, widen, and pressure falls. Lisinopril (Prinivil, Zestril) is an ACE inhibitor. It blocks the enzyme that produces angiotensin II — the hormone that tightens blood vessels and tells the body to retain salt and water. Less angiotensin II means relaxed vessels and less fluid volume.
Who tends to suit which
- Amlodipine is often particularly effective in older adults and patients of African descent, in whom calcium channel blockers tend to outperform ACE inhibitors. It is also a natural choice when angina (chest pain on exertion) coexists with high blood pressure, since it treats both.
- Lisinopril is frequently preferred when diabetes, chronic kidney disease or heart failure are in the picture — ACE inhibitors have well-documented kidney-protective and heart-remodelling benefits beyond the blood pressure number itself.
- Both together is extremely common: combining two mechanisms at moderate doses typically beats pushing one drug to its maximum, with fewer side effects. Fixed-dose combination tablets exist for exactly this reason.
Side effects: swelling vs cough
Each drug has one famous side effect worth knowing in advance. Amlodipine causes ankle and lower-leg swelling in a meaningful minority of users, more often at the 10mg dose than 5mg; it is harmless but annoying, and switching or adding an ACE inhibitor often reduces it. Lisinopril causes a persistent dry, tickly cough in roughly 10% of users — caused by the same enzyme blockade that makes the drug work. If the cough is intolerable, doctors usually switch to an ARB (like losartan or telmisartan), which works similarly without the cough. Lisinopril also carries a rare but serious risk of angioedema — sudden swelling of lips, tongue or throat — which requires immediate medical attention. Neither drug should be stopped abruptly without medical advice, and lisinopril must not be used in pregnancy.
Practical differences day to day
Both are once-daily tablets, and both are forgiving about food. Amlodipine has an exceptionally long half-life, so a single missed dose matters little. Lisinopril requires occasional blood tests (kidney function and potassium) in the first weeks and after dose changes — a routine your doctor will manage. Grapefruit, famously a problem with some calcium channel blockers, has minimal effect on amlodipine specifically.
The cost comparison
This is the shortest section, because both are spectacularly cheap as generics. At International Pharmacy Mart, generic amlodipine and generic lisinopril both start at pennies per tablet, with per-pill prices falling further on 90-day packs — and combination options like lisinopril/HCTZ cost barely more. Browse the full blood pressure category (150+ medications) to compare, and see current offers for first-order savings. For a long-term medication taken for decades, even small per-tablet differences compound — our guide on saving money on prescriptions covers the wider playbook.
Frequently asked questions
Which is better?
Neither universally — different mechanisms suit different patients, and combining both at moderate doses is common and effective.
What are the signature side effects?
Ankle swelling for amlodipine; a dry persistent cough for lisinopril (about 1 in 10 users).
Can they be taken together?
Yes, very commonly — under medical supervision, including as combination pills.
What do the generics cost?
Pennies to ~30 cents per tablet internationally — typically 80–90% below local brand prices.
Medical disclaimer: this article is for general information only and is not medical advice. Always consult your doctor or pharmacist about your medications, dosages and treatment options.