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Calcium channel blockers oral tablet (2.5 mg; 5 mg; 10 mg)

Norvasc

Generic name: amlodipine

Last updated August 25, 2026 0 views Reviewed by Philip Thornton, DipPharm
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What is Norvasc?

Norvasc (amlodipine) belongs to a class of medications called calcium channel blockers. Amlodipine lowers blood pressure by relaxing the blood vessels so the heart does not have to pump as hard.

Norvasc is used to treat certain types of angina (chest pain) and other conditions caused by coronary artery disease (narrowing of the blood vessels that supply blood to the heart).

Norvasc controls chest pain by increasing the supply of blood to the heart. If taken regularly, amlodipine controls chest pain, but it does not stop chest pain once it starts. Your doctor may prescribe a different medication to take when you have chest pain.

Norvasc is also used alone or in combination with other medicines to treat high blood pressure (hypertension) in adults and children at least 6 years old. Lowering blood pressure may lower your risk of a stroke or heart attack.

How should I take Norvasc?

Take Norvasc exactly as prescribed by your doctor. Follow all directions on your prescription label and read all medication guides or instruction sheets. Your doctor may occasionally change your dose.

Norvasc is usually taken once per day.

Take the medicine at the same time each day, with or without food.

Your blood pressure will need to be checked often.

If you have high blood pressure, keep using Norvasc even if you feel well. High blood pressure often has no symptoms.

Do not change your doses or stop taking any of your medications without your doctor's advice.

If you take nitroglycerin for angina, do not stop taking it while you are taking this medicine.

Your treatment may also include diet, exercise, weight control, and blood tests.

Store Norvasc at room temperature away from moisture, heat, and light.

Warnings

Before taking Norvasc, tell your doctor if you have congestive heart failure or liver disease.

Drinking alcohol can further lower your blood pressure within the first 12 hours and may increase certain side effects of amlodipine.

If you are being treated for high blood pressure, keep using Norvasc even if you feel well. High blood pressure often has no symptoms. You may need to use blood pressure medication for the rest of your life.

Norvasc is only part of a complete program of treatment that may also include diet, exercise, weight control, and other medications. Follow your diet, medication, and exercise routines very closely.

Tell your doctor about all other heart or blood pressure medications you are taking.

Your chest pain may become worse when you first start taking Norvasc or when your dose is increased. Call your doctor if your chest pain is severe or ongoing.

Before taking this medicine

You should not take Norvasc if you are allergic to amlodipine.

To make sure Norvasc is safe for you, tell your doctor if you have ever had:

  • severe narrowing of a certain valve in your heart (aortic stenosis), or other heart problems;
  • coronary artery disease (clogged arteries); or
  • liver disease.

It is not known if amlodipine will harm an unborn baby. However, having high blood pressure during pregnancy may cause complications or medical problems in both mother and baby. The benefit of treating hypertension may outweigh any risks to the baby.

Tell your doctor if you are breastfeeding. This medicine can pass into breast milk.

Norvasc side effects

Get emergency medical help if you have signs of an allergic reaction to Norvasc: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

In rare cases, when you first start taking Norvasc, your chest pain may get worse or you could have a heart attack. Seek emergency medical attention or call your doctor right away if you have symptoms such as: chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweating.

Norvasc may cause serious side effects. Call your doctor at once if you have:

  • worsening chest pain; or
  • a light-headed feeling, like you might pass out.

Common Norvasc side effects may include:

  • dizziness, drowsiness;
  • swelling of your legs or ankles;
  • irregular heartbeat;
  • pounding heartbeats or fluttering in your chest;
  • muscle stiffness;
  • uncontrolled muscle movements;
  • feeling tired;
  • stomach pain, nausea; or
  • flushing (sudden warmth, redness, or tingly feeling).

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Dosing information

Usual Adult Dose of Norvasc for Hypertension:

Initial dose: 5 mg orally once a dayMaintenance dose: 5 to 10 mg orally once a dayMaximum dose: 10 mg/day.

Usual Adult Dose of Norvasc for Angina Pectoris:

Maintenance dose: 5 to 10 mg orally once a dayMaximum dose: 10 mg/day.

Usual Adult Dose of Norvasc for Coronary Artery Disease:

Maintenance dose: 5 to 10 mg orally once a dayMaximum dose: 10 mg/day.

Usual Geriatric Dose for Hypertension:

Initial dose: 2.5 mg orally once a dayMaintenance dose: 2.5 to 10 mg orally once a dayMaximum dose: 10 mg/day.

Usual Geriatric Dose for Angina Pectoris:

Initial dose: 5 mg orally once a dayMaintenance dose: 5 to 10 mg orally once a dayMaximum dose: 10 mg/day.

Usual Pediatric Dose for Hypertension:

6 to 17 years:Maintenance dose: 2.5 to 5 mg orally once a dayMaximum dose: 5 mg/day.

What happens if I miss a dose?

Take the medicine as soon as you can, but skip the missed dose if you are more than 12 hours late for the dose. Do not take two doses at one time.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Overdose symptoms may include rapid heartbeats, redness or warmth in your arms or legs, or fainting.

Avoid getting up too fast from a sitting or lying position, or you may feel dizzy.

What other drugs will affect Norvasc?

Sometimes it is not safe to use certain medicines at the same time. Some drugs can affect your blood levels of other drugs you use, which may increase side effects or make the medicines less effective.

Other drugs may interact with amlodipine, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell your doctor about all other medicines you use.

Tell your doctor if you take simvastatin. You should not take more than 20 mg of simvastatin daily while taking this medicine.

Ingredients

Active ingredient: amlodipine besylateInactive ingredients: microcrystalline cellulose, dibasic calcium phosphate anhydrous, sodium starch glycolate, and magnesium stearate.

Pfizer Inc: 235 East 42nd Street, New York, NY 10017,USA.

Common questions about Norvasc

What is the best time of day to take blood pressure medication?
Research has suggested that taking your blood pressure medication at night instead of in the morning can provide better blood pressure control at night without compromising daytime blood pressure control and reduce your overall risk of dying because of cardiovascular disease by 45%. Continue reading
How long does it take for amlodipine to work?
Amlodipine decreases blood pressure over 4 to 8 hours after a single dose. Because the decrease in blood pressure is gradual, a patient's heart rate is not affected because their physiological reflexes (such as an increase in heart rate) are not activated. Continue reading
How do I reduce swelling from amlodipine?
Swelling from amlodipine is a common, but often troublesome side effect of amlodipine with 5% to 9% of people stopping amlodipine because of it. If you develop swelling with amlodipine, tell your doctor right away because they may be able to change your blood pressure medications slightly to help reduce the swelling. Swelling caused by amlodipine does not usually respond to treatment with diuretics (such as furosemide) because it is caused by changes in capillary pressure that result in leakage into the spaces between capillaries (called the interstitial area) rather than water retention. Continue reading
Best time to take amlodipine - day or night?
You can take amlodipine in the morning or at night, whichever works best for your schedule. The key is to take it at the same time each day to maintain consistent blood levels and support its effectiveness. Continue reading
How long does amlodipine stay in your system?
Amlodipine can stay in your system for up to 11.5 days after your last dose. This is because it has a long elimination half-life of 30 to 50 hours, meaning it takes that long for your body to reduce the drug level by half. Continue reading
Does amlodipine cause weight gain?
Weight gain has been reported by some people taking amlodipine but this is not a common side effect and some people have also reported weight loss. Weight gain with amlodipine may also be a symptom of edema, which is when you retain fluid, which may be particularly noticeable around your ankles or lower legs. The risk of edema is greater in women compared with men and in those people taking a higher dosage of amlodipine, and edema is usually noticed as weight gain. Continue reading

Related medicines

Before you take this medicine: the information on this page is general and may not cover your personal circumstances. Read the label supplied with your medicine and ask a pharmacist or doctor if you are unsure, especially if you are pregnant, breastfeeding, taking other medicines or managing a long-term condition.
General medicine information Consumer-friendly language Source: Drugs.com

Content is provided for education and is not medical advice. See our medical disclaimer. Source page medically reviewed by Philip Thornton, DipPharm on August 25, 2026.