Norvasc (Amlodipine)

Amlodipine, the active ingredient in Norvasc, is a calcium channel blocker presented as an oral tablet for oral use. It lowers high blood pressure and relieves chest pain caused by reduced blood flow to the heart, and is prescribed for adults with hypertension or chronic stable angina, and is often used as part of combination therapy.

GNH USA supplies Norvasc as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide. The company adheres to stringent quality standards and provides reliable sourcing for regulated markets.

Norvasc (amlodipine) acts on the cardiovascular system to manage conditions related to high blood pressure and reduced coronary blood flow. - Hypertension: reduces systolic and diastolic blood pressure, helping to prevent cardiovascular complications. - Chronic stable angina: improves myocardial oxygen supply, decreasing frequency of chest pain episodes. - Coronary artery disease: lowers cardiac workload and may reduce risk of ischemic events.

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: especially upon standing.

Serious or Rare Side Effects: - Severe hypotension: markedly low blood pressure. - Myocardial infarction: rare occurrence of heart attack. - Stevens‑Johnson syndrome: severe skin reactions.

When prescribing amlodipine, clinicians should consider several safety measures and patient factors. - Monitor blood pressure: check regularly after initiation and dose adjustments. - Assess for heart failure: avoid rapid dose escalation in decompensated patients. - Review concomitant medications: especially other antihypertensives that may enhance hypotensive effect. - Caution in hepatic impairment: dose may need adjustment in moderate to severe liver disease. - Pregnancy category C: use only if potential benefit justifies potential risk to fetus. - Store at ambient temperature: keep below 25 °C, retain in original packaging, protect from moisture.

Amlodipine can interact with several drugs, altering its efficacy or safety profile.

Major Interactions (Avoid): - Simultaneous use with strong CYP3A4 inhibitors (e.g., ketoconazole, itraconazole): may increase amlodipine plasma levels and risk of hypotension. - Co‑administration with other calcium channel blockers (e.g., verapamil, diltiazem): can cause additive cardiovascular depression.

Moderate Interactions (Monitor Closely): - Concurrent use with beta‑blockers: may enhance antihypertensive effect, requiring blood pressure monitoring. - Diuretics (especially thiazides): may increase risk of electrolyte imbalance and hypotension. - Grapefruit juice: can modestly raise amlodipine concentrations.