acebutolol vs hydralazine
PlainMeds reviewed this comparison against our methodology in August 2026. It places FDA and CMS record fields side by side, without recommending either medication.
Side-by-side comparison of acebutolol and hydralazine. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
Sectral
Apresoline
Acebutolol is a medicine that helps lower blood pressure and control irregular heartbeats. It belongs to a class of drugs called beta-blockers.
Hydralazine is a drug that lowers blood pressure by relaxing blood vessels. It can be used alone or with other medications.
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.
Hydralazine is used to treat high blood pressure (hypertension). It can be used by itself or with other blood pressure medicines. Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems.
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.
Hydralazine works by relaxing the muscles in your blood vessels. This allows blood to flow more easily. As a result, your blood pressure goes down.
No common side effects listed.
- • Headache
- • Loss of appetite
- • Nausea
- • Vomiting
- • Diarrhea
- Cognitive Disorder 620
- Fall 615
- Orthostatic Hypotension 573
- Balance Disorder 568
- Constipation 565
- Chronic Kidney Disease 2,819
- Acute Kidney Injury 2,616
- Renal Failure 2,097
- End Stage Renal Disease 1,585
- Fatigue 1,542
You should not take acebutolol if you have a very slow heart rate, second- or third-degree heart block, heart failure, or cardiogenic shock.
Taking high doses of hydralazine can cause a drug-induced lupus erythematosus (L.E.) cell syndrome. Your doctor will monitor your dose to avoid this.
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. It is not known if hydralazine will harm an unborn baby. Talk to your doctor about the risks and benefits of taking hydralazine during pregnancy or while breastfeeding.
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How to Read This acebutolol vs hydralazine Comparison
acebutolol is classified in the Beta-1 Selective Blocker with ISA drug class, while hydralazine sits within the Vasodilator 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 hydralazine has 10,659. 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 represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for acebutolol or hydralazine.
Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.