benazepril vs fosinopril
Side-by-side comparison of benazepril and fosinopril Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
Lotensin
Monopril
Benazepril (Lotensin) is a medicine that lowers your blood pressure. Lowering blood pressure helps to prevent strokes and heart attacks.
Fosinopril is a medicine that lowers blood pressure. It can also help manage heart failure.
Benazepril is used to treat high blood pressure (hypertension). Lowering your blood pressure reduces your risk of heart attack and stroke. It can be used alone or with other blood pressure medicines.
Fosinopril is used to treat high blood pressure. It can be used alone or with a water pill (diuretic). Fosinopril also helps manage heart failure when used with other medicines.
Benazepril is an ACE inhibitor. It works by relaxing your blood vessels. This makes it easier for your heart to pump blood.
Fosinopril belongs to a class of drugs called ACE inhibitors. It works by blocking a substance in your body that tightens blood vessels. This helps your blood vessels relax and lowers your blood pressure.
- • Headache
- • Dizziness
- • Feeling sleepy
- • Dizziness when standing up
- • Cough
- • Dizziness
- • Nausea
- • Vomiting
- Feeling sick to your stomach 439
- Feeling tired 408
- Medicine not working 398
- Feeling lightheaded 382
- Difficulty breathing 380
- Tiredness 239
- Diarrhea 232
- Difficulty breathing 210
- Feeling sick to your stomach 205
- Medicine not working 182
If you become pregnant, stop taking benazepril right away and tell your doctor. This medicine can harm or kill your unborn baby.
Fosinopril can harm your unborn baby, even causing death. Stop taking fosinopril as soon as you know you are pregnant.
Benazepril can cause serious harm to your unborn baby, including death. Stop taking it as soon as you know you are pregnant. Talk to your doctor about other blood pressure medicines if you are planning to become pregnant.
Do not take fosinopril if you are pregnant. It can cause serious harm or death to your unborn baby. Talk to your doctor about other blood pressure medicines if you are breastfeeding.
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How to Read This benazepril vs fosinopril Comparison
benazepril is classified in the ACE Inhibitor drug class, while fosinopril sits within the ACE Inhibitor class. Because both drugs share the same classification, they are often considered interchangeable in theory — but clinical outcomes rarely track that cleanly. Both drugs are prescription-only, so a licensed provider must authorize use.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, benazepril has 2,007 submissions while fosinopril has 1,068. Those figures reflect cumulative reporting volume — not per-patient risk — so older, widely dispensed drugs typically look worse on count alone. No direct interaction between these two drugs is listed in our FDA-derived dataset, though co-prescription still warrants pharmacist review. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between benazepril and fosinopril — always consult your physician or pharmacist first.
Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.