Europe — EMA
Norvasc (Amlodipine)
GNH USA supplies Norvasc (Amlodipine), a calcium channel blocker for hypertension and angina pectoris.
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What is Amlodipine?
Amlodipine, the active ingredient in Norvasc, is a calcium channel blocker presented as a tablet for oral use. It treats hypertension and angina pectoris in adult patients.
GNH USA supplies Norvasc as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.
What is Amlodipine used for?
Norvasc belongs to the calcium channel blocker class and is used to manage cardiovascular conditions.
Hypertension: lowers systemic blood pressure and reduces the risk of cardiovascular events. Angina pectoris: improves coronary blood flow and relieves chest pain associated with stable angina.
What are the side effects of Amlodipine?
Amlodipine may cause a range of adverse reactions, from mild to severe.
Common Side Effects: - Headache: mild to moderate intensity, often transient. - Peripheral edema: swelling of the ankles or lower legs. - Flushing: sensation of warmth and redness, usually on the face or neck. - Dizziness: light‑headed feeling, especially when standing quickly.
Serious or Rare Side Effects: - Severe hypotension: marked drop in blood pressure requiring medical attention. - Myocardial infarction: rare occurrence of heart attack. - Hepatic dysfunction: abnormal liver enzyme elevations. - Allergic reactions: rash, itching, or swelling of the face and throat. - Cardiac arrhythmia: irregular heart rhythm that may be life‑threatening.
What precautions apply to Amlodipine?
Before initiating therapy, consider the following safety measures.
Monitor blood pressure: ensure adequate control and avoid excessive lowering. Use caution in hepatic impairment: dose adjustments may be required. Avoid abrupt discontinuation: tapering reduces risk of rebound hypertension. Exercise caution in heart failure: monitor for worsening symptoms. Store at room temperature: keep in the original pack, protect from moisture and direct sunlight.
What does Amlodipine interact with?
Amlodipine can interact with several medicines; awareness helps prevent adverse outcomes.
Major Interactions (Avoid): - Simultaneous use with strong CYP3A4 inhibitors (e.g., ketoconazole) may increase plasma levels. - Co‑administration with other antihypertensives can cause excessive blood pressure reduction. - Concurrent use with grapefruit juice may elevate amlodipine concentrations.
Moderate Interactions (Monitor Closely): - Combination with CYP3A4 inducers (e.g., rifampicin) may reduce efficacy. - Use with beta‑blockers requires monitoring for additive heart rate effects.



