acebutolol vs verapamil
Side-by-side comparison of acebutolol and verapamil Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
Sectral
Calan, Verelan
Acebutolol is a medicine that helps lower blood pressure and control irregular heartbeats. It belongs to a class of drugs called beta-blockers.
Verapamil is a drug that helps to lower blood pressure and treat chest pain (angina) and irregular heartbeats (arrhythmias). It works by relaxing blood vessels and slowing down the heart rate.
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.
Verapamil is used to treat chest pain called angina. This includes angina that happens when you are resting or during normal activity. It is also used to control your heart rate if you have a fast or irregular heartbeat, such as atrial fibrillation or atrial flutter. Verapamil also treats high blood pressure.
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.
Verapamil belongs to a class of drugs called calcium channel blockers. It works by blocking calcium from entering heart and blood vessel cells. This relaxes and widens blood vessels, which lowers blood pressure and makes it easier for the heart to pump.
No common side effects listed.
- • Constipation
- • Shortness of breath
- • Dizziness
- • Slow heart rate (less than 50 beats per minute)
- • 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
- Shortness of breath 356
- Feeling sick to your stomach 341
- Interaction with another medicine 316
- Feeling lightheaded or unsteady 286
- Low blood pressure 280
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 this medicine if you have severe heart problems, very low blood pressure, or certain types of irregular heartbeats without a pacemaker. Talk to your doctor if you have any of these conditions.
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, plan to become pregnant, or are breastfeeding. It is not known if verapamil will harm your unborn baby. Verapamil can pass into breast milk, so talk to your doctor about the best way to feed your baby if you take this medicine.
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How to Read This acebutolol vs verapamil Comparison
acebutolol is classified in the Beta-1 Selective Blocker with ISA drug class, while verapamil sits within the Calcium Channel Blocker 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 verapamil has 1,579. 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 verapamil — 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.