Enalapril comes as a tablet to take by mouth. It is usually taken once or twice a day with or without food. To help you remember to take enalapril, take it around the same time every day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take enalapril exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.

Your doctor will probably start you on a low dose of enalapril and gradually increase your dose.

Enalapril controls high blood pressure and heart failure but does not cure them. Continue to take enalapril even if you feel well. Do not stop taking enalapril without talking to your doctor.

Enalapril may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

cough
dizziness
rash
weakness
Some side effects can be serious. The following symptoms are uncommon, but if you experience any of them, call your doctor immediately:

swelling of the face, throat, tongue, lips, eyes, hands, feet, ankles, or lower legs
hoarseness
difficulty breathing or swallowing
yellowing of the skin or eyes
fever, sore throat, chills, and other signs of infection
lightheadedness
fainting
Enalapril may cause other side effects. Call your doctor if you have any unusual problems while taking this medication

Talk to your doctor before using salt substitutes containing potassium. If your doctor prescribes a low-salt or low-sodium diet, follow these directions carefully.

In case of overdose, call your local poison control center at 1-800-222-1222. If the victim has collapsed or is not breathing, call local emergency services at 911.

Symptoms of overdose may include:

lightheadedness
fainting

Keep all appointments with your doctor and the laboratory. Your blood pressure should be checked regularly to determine your response to enalapril. Your doctor may order certain lab tests to check your body's response to enalapril.

Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription.

Take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.

Enalapril is used alone or in combination with other medications to treat high blood pressure. It is also used in combination with other medications to treat heart failure. Enalapril is in a class of medications called angiotensin-converting enzyme (ACE) inhibitors. It works by decreasing certain chemicals that tighten the blood vessels, so blood flows more smoothly and the heart can pump blood more efficiently.

Enalapril is also sometimes used to treat kidney disease related to diabetes. Talk to your doctor about the possible risks of using this medication for your condition. This medication may be prescribed for other uses; ask your doctor or pharmacist for more information

Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom). Throw away any medication that is outdated or no longer needed. Talk to your pharmacist about the proper disposal of your medication

Before taking enalapril,

tell your doctor and pharmacist if you are allergic to enalapril, benazepril (Lotensin), captopril (Capoten), fosinopril (Monopril), lisinopril (Prinivil, Zestril), moexipril (Univasc), perindopril (Aceon), quinapril (Accupril), ramipril (Altace), trandolapril (Mavik), or any other medications.
tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking. Be sure to mention any of the following: aspirin and other nonsteroidal anti-inflammatory medications (NSAIDs) such as indomethacin (Indocin); diuretics ('water pills'); lithium (Eskalith, Lithobid); and potassium supplements. Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
tell your doctor if you have or have ever had heart or kidney disease; lupus; scleroderma; diabetes; or angioedema, a condition that causes difficulty swallowing or breathing and painful swelling of the the face, throat, tongue, lips, eyes, hands, feet, ankles, or lower legs.
tell your doctor if you plan to become pregnant or are breast-feeding.
if you are having surgery, including dental surgery, tell the doctor or dentist that you are taking enalapril.
you should know that diarrhea, vomiting, not drinking enough fluids, and sweating a lot can cause a drop in blood pressure, which may cause lightheadedness and fainting. IMPORTANT WARNING: Do not take enalapril if you are pregnant. If you become pregnant while taking enalapril, call your doctor immediately. Enalapril may harm the fetus.