enalapril vs prazosin
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Side-by-side comparison of enalapril and prazosin. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
minor Known Drug Interaction
Other Cardiovascular Agents Enalapril maleate has been used concomitantly with beta adrenergic-blocking agents, methyldopa, nitrates, calcium-blocking agents, hydralazine, prazosin and digoxin without evidence of clinically significant adverse interactions.
Enalapril (Vasotec) is a medicine that lowers blood pressure and helps treat heart failure. It belongs to a class of drugs called ACE inhibitors.
Prazosin (Minipress) is a medicine that lowers your blood pressure. Lowering blood pressure helps prevent strokes and heart attacks.
Enalapril is used to treat high blood pressure. It can be used alone or with other blood pressure medicines, like water pills. Enalapril also treats symptomatic congestive heart failure, usually with other medicines. It can also help clinically stable patients with left ventricular dysfunction.
Prazosin is used to treat high blood pressure. Lowering your blood pressure reduces your risk of serious heart problems. It can be used alone or with other blood pressure medicines. Managing high blood pressure should include healthy habits like diet and exercise.
Enalapril blocks a substance in your body that tightens blood vessels. This helps your blood vessels relax and widens them. As a result, blood pressure is lowered, and blood can flow more easily.
Prazosin belongs to a class of drugs called alpha-1 blockers. It works by relaxing your blood vessels. This makes it easier for blood to flow through your body, which lowers blood pressure.
- • Headache
- • Dizziness
- • Fatigue
- • Cough
- • Dizziness
- • Headache
- • Drowsiness
- • Lack of energy
- • Weakness
- Diarrhoea 2,807
- Dyspnoea 2,659
- Nausea 2,574
- Fatigue 2,377
- Drug Interaction 2,336
- Nausea 361
- Headache 265
- Dizziness 263
- Anxiety 260
- Fatigue 257
This drug can harm your unborn baby. Stop taking enalapril as soon as you know you are pregnant.
Prazosin can cause a sudden drop in blood pressure, especially when you first start taking it. This can make you feel dizzy or faint. To avoid this, take your first dose at bedtime. Be careful when standing up quickly.
Do not take enalapril if you are pregnant because it can cause harm or death to the developing fetus. Talk to your doctor about safe alternatives if you are breastfeeding.
Tell your doctor if you are pregnant or plan to become pregnant. It is not known if prazosin will harm your unborn baby. Talk to your doctor about the risks and benefits of taking prazosin while pregnant or breastfeeding.
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How to Read This enalapril vs prazosin Comparison
enalapril is classified in the ACE Inhibitor drug class, while prazosin sits within the Alpha-1 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, enalapril has 12,753 submissions while prazosin has 1,406. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known minor interaction flagged in FDA labeling, attributed to both drugs are used to lower blood pressure, but studies show they do not cause harmful interactions when taken together.. 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 enalapril or prazosin.
Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.