acebutolol vs quinapril
Side-by-side comparison of acebutolol and quinapril Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
Sectral
Accupril
Acebutolol is a medicine that helps lower blood pressure and control irregular heartbeats. It belongs to a class of drugs called beta-blockers.
Quinapril is a medicine that lowers blood pressure. It can also help manage heart failure when used with other treatments.
Acebutolol is used to treat high blood pressure in adults. It can be used alone or with other blood pressure medicines. Acebutolol is also used to manage irregular heartbeats called ventricular arrhythmias. It helps to reduce the number of these irregular beats.
Quinapril is used to treat high blood pressure (hypertension). Lowering blood pressure reduces the risk of strokes and heart attacks. Quinapril can also be used to manage heart failure, along with other medicines like diuretics.
Acebutolol works by blocking the effects of certain natural chemicals in your body, like adrenaline, on the heart and blood vessels. This helps to slow down the heart rate and lower blood pressure. It also helps to make the heart beat more regularly.
Quinapril 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 widens them, which lowers your blood pressure and makes it easier for your heart to pump.
No common side effects listed.
- • Headache
- • Dizziness
- • Fatigue
- • Coughing
- • Nausea
- Problems with thinking or memory 620
- Falling down 615
- Low blood pressure when standing up 573
- Problems with balance 568
- Difficulty passing stools 565
- The medicine is not working 465
- Falling down 420
- Feeling sick to your stomach 407
- Difficulty breathing 405
- Aches and pains 386
You should not take acebutolol if you have a very slow heart rate, second- or third-degree heart block, heart failure, or cardiogenic shock.
You should not take quinapril if you are allergic to it or any other ACE inhibitor. You should not take quinapril if you have a history of angioedema (swelling) related to ACE inhibitors. Do not take quinapril with a neprilysin inhibitor like sacubitril. If you have diabetes, do not take quinapril with aliskiren.
Tell your doctor if you are pregnant or plan to become pregnant. It is not known if acebutolol will harm an unborn baby. Talk to your doctor about the risks and benefits of taking acebutolol while breastfeeding.
Tell your doctor if you are pregnant or plan to become pregnant. Quinapril can harm your unborn baby, especially if you take it during the second or third trimester. It is not known if quinapril passes into breast milk, so talk to your doctor before breastfeeding.
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How to Read This acebutolol vs quinapril Comparison
acebutolol is classified in the Beta-1 Selective Blocker with ISA drug class, while quinapril sits within the ACE Inhibitor class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. 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, acebutolol has 2,941 submissions while quinapril has 2,083. 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 acebutolol and quinapril — 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.