Norvasc (Amlodipine Besilate)

Amlodipine besilate, the active ingredient in Norvasc, is a calcium channel blocker presented as an oral tablet for oral use. It is used to treat high blood pressure and chest pain in adults.

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

Norvasc, a calcium channel blocker, is employed in cardiovascular conditions to improve blood flow and reduce cardiac workload.

- Hypertension: lowers systemic blood pressure and reduces the risk of cardiovascular complications. - Chronic stable angina: decreases the frequency of angina attacks by improving coronary blood supply. - Coronary artery disease: helps prevent ischemic episodes by dilating coronary arteries.

Adverse reactions may occur with amlodipine therapy and are categorized by frequency.

Common Side Effects: - Peripheral edema: swelling of the ankles or feet. - Headache: mild to moderate intensity. - Flushing: transient warmth and redness. - Dizziness: especially upon standing. - Fatigue: general tiredness. - Nausea: mild gastrointestinal upset.

Serious or Rare Side Effects: - Severe hypotension: markedly low blood pressure. - Myocardial infarction: rare but possible cardiac event. - Elevated liver enzymes: indicating hepatic stress. - Allergic reactions: rash, pruritus, or anaphylaxis. - Blood dyscrasias: neutropenia or thrombocytopenia. - Heart block: conduction abnormalities.

Before initiating therapy, clinicians should evaluate patient-specific factors and monitor for potential complications.

- Blood pressure monitoring: check regularly to avoid excessive hypotension. - Cardiac assessment: review heart rate and rhythm, especially in patients with conduction disorders. - Concomitant drugs: assess for interactions that may amplify blood pressure effects. - Hepatic impairment: use with caution; dose adjustments may be required. - Discontinuation: avoid abrupt cessation to prevent rebound hypertension. - Store at ambient temperature: keep in the original container, protect from moisture and direct sunlight.

Amlodipine may interact with several medicines, altering its efficacy or safety profile.

Major Interactions (Avoid): - Strong CYP3A4 inhibitors (e.g., ketoconazole, itraconazole): can markedly increase amlodipine levels. - Simvastatin >20 mg: risk of myopathy and rhabdomyolysis. - Grapefruit juice: may raise plasma concentrations.

Moderate Interactions (Monitor Closely):\n- Beta‑blockers: additive effects on heart rate and blood pressure. - Diuretics: may enhance hypotensive response.