Product image of Norvasc (Amlodipine) supplied by GNH India

Norvasc

Active Ingredient:
Amlodipine
Origin:
EU

Norvasc (Amlodipine)

Amlodipine, the active ingredient in Norvasc, is a calcium channel blocker presented as an oral formulation for oral use. It is used to treat elevated blood pressure and chest pain caused by reduced blood flow to the heart, primarily in adult patients.

GNH India supplies Norvasc as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Viatris Hellas Limited

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Indications & Clinical Uses

Amlodipine, a calcium channel blocker, is employed in the management of cardiovascular conditions.

  • Hypertension: lowers systemic blood pressure by relaxing arterial smooth muscle.
  • Chronic stable angina: reduces frequency of angina attacks by improving coronary blood flow.
  • Ischemic heart disease: contributes to symptom control by vasodilation of coronary vessels.

How It Works

  • Amlodipine selectively inhibits L-type calcium channels in vascular smooth muscle and cardiac myocytes. This blockade reduces calcium influx, leading to relaxation of arterial smooth muscle, vasodilation, and decreased peripheral vascular resistance, while also modestly decreasing myocardial contractility and oxygen demand.

Side Effects

Amlodipine may cause a range of adverse reactions, varying from mild to serious.

Common Side Effects

  • Peripheral edema: swelling of the ankles or feet.
  • Headache: mild to moderate intensity.
  • Flushing: sensation of warmth and redness.
  • Dizziness: light‑headed feeling, especially on standing.
  • Fatigue: general tiredness.
  • Palpitations: awareness of heartbeats.

Serious or Rare Side Effects

  • Severe hypotension: marked drop in blood pressure.
  • Myocardial infarction: rare occurrence of heart attack.
  • Liver enzyme elevation: signs of hepatic stress.
  • Allergic reactions: rash, itching, or swelling.
  • Arrhythmias: abnormal heart rhythms.
  • Heart block: impaired electrical conduction.

Precautions & Warnings

When prescribing amlodipine, several precautions should be observed to ensure safe use.

  • Blood pressure monitoring: check regularly to avoid excessive hypotension.
  • Cardiac assessment: evaluate heart function in patients with existing cardiac disease.
  • Hepatic impairment: use caution and consider dose adjustment in liver dysfunction.
  • Concomitant antihypertensives: assess risk of additive blood pressure lowering.
  • Abrupt discontinuation: avoid sudden stop to prevent rebound hypertension.
  • Store at room temperature: keep in original packaging, protect from moisture and direct sunlight.

Avoid Interactions

Amlodipine can interact with other medicines, influencing its effectiveness or safety.

Major Interactions (Avoid)

  • Strong CYP3A4 inhibitors (e.g., clarithromycin, itraconazole): may increase amlodipine levels and risk of toxicity.
  • Grapefruit juice: can raise plasma concentrations, leading to enhanced effects.
  • Concurrent use with other potent antihypertensives: may cause dangerous hypotension.

Moderate Interactions (Monitor Closely)

  • CYP3A4 inducers (e.g., rifampin, carbamazepine): may reduce amlodipine exposure and efficacy.
  • Diuretics: combined use can increase risk of electrolyte imbalance and low blood pressure.
  • Non‑steroidal anti‑inflammatory drugs (NSAIDs): may attenuate antihypertensive response.

Frequently Asked Questions

Norvasc contains amlodipine, which is prescribed to lower high blood pressure (hypertension) and to prevent chest pain (angina) in patients with chronic stable coronary artery disease. By controlling these conditions, it helps reduce the risk of cardiovascular complications.

Amlodipine blocks L-type calcium channels in the smooth muscle of arteries and in cardiac cells. This inhibition reduces calcium entry, causing the blood vessels to relax and widen, which lowers peripheral resistance and blood pressure while also decreasing the heart’s oxygen demand.

The dose of amlodipine is individualized by the prescribing clinician based on the patient’s blood pressure, angina severity, age, kidney and liver function, and other medications. The prescriber determines the appropriate strength and titration schedule.

Safety data for amlodipine in pregnancy and lactation are limited. It should only be used if the potential benefit justifies any possible risk to the fetus or infant, and the decision must be made by a qualified healthcare professional.

To request Norvasc, submit an enquiry on the product page at gnhindia.com specifying the required quantity. GNH India works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details and any necessary import documentation.

Amlodipine belongs to the calcium‑channel blocker class, which primarily causes vasodilation. Compared with ACE inhibitors or beta‑blockers, it has a lower incidence of cough but may cause more peripheral edema. Choice of therapy depends on patient comorbidities, tolerance, and physician preference.

Store Norvasc at room temperature, below 25 °C, in its original container. Protect the tablets from moisture, excessive heat and direct sunlight. Keep out of reach of children and do not use after the expiry date printed on the package.

Norvasc is taken orally, usually once daily. Swallow the tablet whole with a glass of water; it may be taken with or without food. Follow the prescribing clinician’s instructions regarding timing and any dose adjustments.

Serious adverse events include severe hypotension, myocardial infarction, significant liver enzyme elevation, allergic reactions such as rash or swelling, and cardiac rhythm disturbances like arrhythmias or heart block. Patients should seek immediate medical attention if they experience these symptoms.

Amlodipine should be avoided in individuals with known hypersensitivity to the drug or any calcium‑channel blocker, and in patients with severe aortic stenosis or unstable heart failure unless specifically directed by a physician. Clinicians must assess each patient’s medical history before prescribing.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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