What Is Enalapril? Uses, Dosage, and What You Need to Know in 2026

Enalapril is a prescription medication in the angiotensin-converting enzyme (ACE) inhibitor class. It is one of the most widely used blood pressure medications in the world, included on the World Health Organization's List of Essential Medicines, and prescribed to millions of patients in the United States each year. This comprehensive guide covers everything you need to know as a patient.

Brand Names and Generic Status

Enalapril is the generic name for the medication. Brand names include:

Vasotec — the original brand-name tablet form

Epaned — a brand-name oral solution (liquid form) used primarily for infants, children, and patients who cannot swallow tablets

Merck originally patented enalapril in 1978, and the drug came into clinical use in 1984. The patent expired in 2000, opening the market to generic manufacturers. Today, multiple companies produce generic enalapril tablets, making it broadly accessible and affordable.

What Is Enalapril Used For?

Enalapril has three FDA-approved indications:

Hypertension (high blood pressure) — approved for adults and children as young as 1 month old; used alone or in combination with other blood pressure medications.

Symptomatic congestive heart failure — used in combination with diuretics and sometimes digoxin; proven to improve symptoms, increase survival, and reduce hospital visits.

Asymptomatic left ventricular dysfunction — for patients whose heart is weakened (ejection fraction ≤35%) but who do not yet have symptoms; enalapril delays progression to symptomatic heart failure and reduces hospitalization risk.

Enalapril is also sometimes used off-label for diabetic kidney disease (to slow proteinuria and protect kidney function) and chronic kidney disease associated with hypertension.

Available Forms and Dosages

Enalapril is available in the following forms:

Oral tablets: 2.5 mg, 5 mg, 10 mg, 20 mg

Oral solution (Epaned): 1 mg/mL liquid — primarily for infants and patients with swallowing difficulties

Intravenous (enalaprilat): 1.25 mg/mL solution — used in hospitals when oral medication is not possible

Typical oral dosing:

Hypertension: Starting dose is typically 5 mg once daily; range 10-40 mg/day in 1-2 divided doses.

Heart failure: Starting dose 2.5 mg twice daily; target 10-20 mg twice daily; maximum 40 mg/day.

Kidney impairment: Starting dose is 2.5 mg/day if creatinine clearance is 30 mL/min or below; titrate carefully.

Is Enalapril a Controlled Substance?

No. Enalapril is not a controlled substance. It has no DEA schedule, no abuse potential, and no special prescribing restrictions. Any licensed healthcare provider with prescribing authority — including nurse practitioners and physician assistants — can prescribe it. It is also appropriate for telehealth prescribing without restriction.

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Key Warnings and Contraindications

Pregnancy (boxed warning): Enalapril can cause fetal injury or death. Stop immediately if pregnancy is detected.

History of angioedema: Contraindicated in anyone who has previously had angioedema from an ACE inhibitor or hereditary/idiopathic angioedema.

Sacubitril (Entresto): Do not take enalapril within 36 hours of sacubitril/valsartan — significantly increases angioedema risk.

Aliskiren in diabetes: Avoid combining enalapril with aliskiren in diabetic patients.

How Much Does Enalapril Cost?

Generic enalapril tablets are among the most affordable prescription medications available. Retail cash price is typically $17-$50 for a 30-day supply. With a GoodRx or SingleCare coupon, prices drop to as low as $9-$13. Most insurance plans cover it at Tier 1 with a $0-$10 copay. Medicare Part D also covers it at the preferred generic tier.

For a deeper understanding of how enalapril works at a biological level, see How Does Enalapril Work? Mechanism of Action Explained. If you need help finding enalapril in stock at a pharmacy near you, medfinder can help locate your exact dose.