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 tablet for oral use. It treats hypertension and chronic stable angina 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 Pharma Gmbh

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Indications & Clinical Uses

Norvasc (amlodipine) belongs to the calcium channel blocker class and is used to manage cardiovascular conditions.

  • Hypertension: lowers elevated blood pressure by relaxing arterial smooth muscle, reducing peripheral resistance.
  • Chronic stable angina: improves myocardial oxygen supply by dilating coronary arteries, decreasing frequency of chest pain episodes.
  • Coronary artery disease: helps prevent ischemic events by maintaining adequate coronary blood flow and reducing cardiac workload.

How It Works

  • Amlodipine selectively inhibits the influx of calcium ions through L-type calcium channels in vascular smooth muscle and cardiac myocytes. This inhibition leads to vasodilation of peripheral arterioles, decreased systemic vascular resistance, and modest reduction of myocardial contractility, thereby lowering blood pressure and relieving myocardial oxygen demand in angina.

Side Effects

Amlodipine may cause a range of adverse reactions, most of which are mild and reversible.

Common Side Effects

  • Peripheral edema: swelling of the ankles or feet due to fluid accumulation.
  • Headache: mild to moderate intensity, often transient.
  • Flushing: sensation of warmth and redness, especially on the face.
  • Dizziness or light‑headedness, particularly after standing.
  • Fatigue: general feeling of tiredness.
  • Palpitations: awareness of heartbeats.

Serious or Rare Side Effects

  • Severe hypotension: markedly low blood pressure requiring medical attention.
  • Myocardial infarction: rare occurrence of heart attack.
  • Hepatic dysfunction: abnormal liver enzyme elevations.
  • Allergic reactions: rash, pruritus, or anaphylaxis.
  • Cardiac conduction abnormalities: heart block or arrhythmias.

Precautions & Warnings

Before initiating therapy with amlodipine, clinicians should consider several safety measures.

  • Blood pressure monitoring: regularly assess to avoid excessive hypotension.
  • Cardiac evaluation: review history of heart failure or recent myocardial infarction.
  • Hepatic function: adjust use in patients with significant liver impairment.
  • Concomitant antihypertensives: watch for additive blood‑pressure‑lowering effects.
  • Discontinuation: avoid abrupt cessation to prevent rebound hypertension.
  • Store at below 25°C: keep in the original packaging, protect from moisture and direct sunlight.

Avoid Interactions

Amlodipine can interact with other medicines, altering its efficacy or safety profile.

Major Interactions (Avoid)

  • Strong CYP3A4 inhibitors (e.g., ketoconazole, itraconazole): may increase amlodipine plasma levels, raising risk of hypotension.
  • Concurrent use with other potent antihypertensives (e.g., clonidine, alpha‑blockers): can cause additive blood‑pressure reduction.
  • Grapefruit juice: inhibits CYP3A4 metabolism, potentially elevating drug concentrations.

Moderate Interactions (Monitor Closely)

  • CYP3A4 inducers (e.g., rifampin, carbamazepine): may reduce amlodipine effectiveness.
  • Beta‑blockers: combined effect on heart rate and blood pressure requires monitoring.
  • Diuretics: may enhance antihypertensive response, necessitating dose adjustments.
  • NSAIDs: can blunt antihypertensive effect, especially in renal‑impaired patients.
  • Digoxin: monitor for signs of increased serum digoxin levels.

Frequently Asked Questions

Norvasc contains amlodipine, a calcium channel blocker prescribed primarily for hypertension, chronic stable angina, and coronary artery disease. By relaxing blood vessels, it helps lower high blood pressure and reduces chest pain episodes associated with reduced myocardial oxygen supply.

Amlodipine blocks L‑type calcium channels in vascular smooth muscle and cardiac cells, preventing calcium entry that triggers contraction. This results in vasodilation of peripheral arteries, decreased systemic vascular resistance, and modest reduction of cardiac workload, thereby lowering blood pressure.

The appropriate dose of Norvasc is individualized by the prescribing clinician based on the patient’s medical condition, response, and tolerability. Dosage adjustments are made according to clinical guidelines and patient-specific factors.

Amlodipine is generally classified as a pregnancy category C medication, indicating that risk cannot be ruled out. It should only be used if the potential benefit justifies the potential risk to the fetus. Breastfeeding mothers should consult their healthcare provider, as amlodipine may pass into breast milk.

To place an order, submit an enquiry on the Norvasc 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.

Compared with beta‑blockers or ACE inhibitors, amlodipine offers once‑daily dosing and a favorable side‑effect profile for many patients, especially those who experience cough with ACE inhibitors. However, it may cause peripheral edema more frequently than some alternatives, so choice depends on individual patient characteristics.

Norvasc tablets should be stored at temperatures below 25 °C in their original container, protected from moisture and direct sunlight. Keeping the product in a dry, cool environment helps maintain its stability and potency throughout its shelf life.

Norvasc is taken orally, usually once daily, with or without food. Patients should swallow the tablet whole with a glass of water and follow the dosing schedule prescribed by their healthcare professional.

Serious risks, though uncommon, include severe hypotension, myocardial infarction, hepatic dysfunction, and allergic reactions such as rash or anaphylaxis. Patients should seek immediate medical attention if they experience symptoms like fainting, chest pain, jaundice, or swelling of the face and throat.

Norvasc is contraindicated in patients with known hypersensitivity to amlodipine or any component of the formulation. Caution is advised for individuals with severe aortic stenosis, unstable heart failure, or significant liver disease, and it should be avoided in those with a history of serious allergic reactions to calcium channel blockers.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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