Norvasc

Generic name: Amlodipine besylate

What is Norvasc?

Norvasc is in a class of drugs called calcium channel blockers, which relax (widen) the blood vessels (veins and arteries), making it easier for the heart to pump and reducing its workload.

Norvasc is used to treat hypertension (high blood pressure) and to treat angina (chest pain).

What is the most important information I should know about Norvasc?

If you have high blood pressure, you must take Norvasc regularly for it to be effective. Since blood pressure declines gradually, it may be several weeks before you get the full benefit of Norvasc; and you must continue taking it even if you are feeling well. Norvasc does not cure high blood pressure; it merely keeps it under control.

Although very rare, if you have severe heart disease, you may experience an increase in frequency and duration of angina attacks (chest pain), or even have a heart attack, when you are starting on Norvasc or your dosage is increased.

Who should not take Norvasc?

If you are sensitive to or have ever had an allergic reaction to Norvasc, do not take Norvasc.

What should I tell my doctor before I take the first dose of Norvasc?

Tell your doctor about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with Norvasc. Also, talk to your doctor about your complete medical history, especially if you have heart conditions or liver disease.

What is the usual dosage?

The information below is based on the dosage guidelines your doctor uses. Depending on your condition and medical history, your doctor may prescribe a different regimen. Do not change the dosage or stop taking your medication without your doctor's approval.

Angina

Adults: The usual starting dose is 5 to 10 mg once daily. If you have liver disease, the lower 5mg dose will be used at the start.

Adults over 65 years: The usual starting dose is 5 mg. Your doctor may adjust the dose based on your response to the drug.

High Blood Pressure

Adults: The usual starting dose is 5 milligrams (mg) taken once a day. The most you should take in a day is 10 mg. If your doctor is adding Norvasc to other high blood pressure medications, the dose is 2.5 mg once daily. The lower 2.5-mg starting dose also applies if you have liver disease.

Children 6-17 years: The usual dose is 2.5 to 5 mg once a day. Doses exceeding 5 mg have not been studied in children.

Adults over 65 years: The usual starting dose is 2.5 mg.

How should I take Norvasc?

Norvasc may be taken with or without food. A once-a-day medication, Norvasc may be used alone or in combination with other drugs for high blood pressure or angina.

You should take Norvasc exactly as prescribed, even if your symptoms have disappeared. You will begin to see a drop in your blood pressure 24 hours after you start the medication.

What should I avoid while taking Norvasc?

Use caution when you stand or sit up from a lying position, especially if you wake up during the night. You may become dizzy when changing positions. Use alcohol cautiously. Alcohol may further lower blood pressure and increase drowsiness or dizziness while taking Norvasc.

What are possible food and drug interactions associated with Norvasc?

There are no known food or drug interactions with Norvasc.

What are the possible side effects of Norvasc?

Side effects cannot be anticipated. If any develop or change in intensity, tell your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking this drug.

Side effects may include: dizziness, fatigue, flushing, fluid retention and swelling, headache, palpitations (fluttery or throbbing heartbeat).

Can I receive Norvasc if I am pregnant or breastfeeding?

The effects of Norvasc during pregnancy and breastfeeding are unknown. Tell your doctor immediately if you are pregnant, plan to become pregnant, or are breastfeeding.

What should I do if I miss a dose of Norvasc?

If you forget to take a dose, take it as soon as you remember. If it is almost time for your next dose, skip the one you missed and go back to your regular schedule. Never take 2 doses at the same time.

How should I store Norvasc?

Store at room temperature in a tightly closed container, away from light.