Nordex (Amlodipine)

Amlodipine is a calcium channel blocker used to manage conditions related to vascular tone and cardiac workload.

• Hypertension: reduces systolic and diastolic blood pressure by relaxing arterial smooth muscle.
• Chronic stable angina: improves myocardial oxygen delivery by dilating coronary arteries.
• Coronary artery disease management: helps control blood pressure and reduce cardiac workload as part of broader therapeutic strategies.

• Amlodipine binds to L-type calcium channels on vascular smooth‑muscle and cardiac myocytes, inhibiting calcium influx. This action prevents calcium‑dependent contraction, leading to vasodilation of peripheral arteries and reduced systemic vascular resistance, while also decreasing myocardial oxygen demand by modestly lowering heart rate and contractility.

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

Common Side Effects

• Headache: mild to moderate pain often occurring early in therapy.
• Peripheral edema: swelling of the ankles or lower legs due to fluid accumulation.
• Flushing: transient warmth and redness of the skin.
• Dizziness: sensation of light‑headedness, especially when standing quickly.

Serious or Rare Side Effects

• Severe hypotension: marked drop in blood pressure that can cause fainting.
• Myocardial infarction: rare occurrence of heart attack in susceptible patients.
• Hepatic enzyme elevation: abnormal liver function tests indicating possible liver stress.
• Allergic reactions: rash, itching, or swelling that may progress to anaphylaxis.
• Cardiac arrhythmias: irregular heart rhythms requiring medical attention.

Before initiating therapy, clinicians should evaluate individual risk factors and monitor patients for specific safety concerns.

• Blood pressure monitoring: regularly check to avoid excessive hypotension.
• Hepatic impairment: use caution and consider dose adjustment in patients with liver disease.
• Heart failure: monitor for worsening symptoms, especially peripheral edema.
• Elderly patients: start at the lowest effective dose and titrate slowly.
• Abrupt discontinuation: avoid sudden stop to prevent rebound hypertension.
• Store at room temperature: keep below 25 °C, in the original packaging, protected from moisture and direct sunlight.

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

Major Interactions (Avoid)

• Simvastatin: increased risk of myopathy when combined with amlodipine.
• Strong CYP3A4 inhibitors (e.g., ketoconazole, itraconazole): may raise amlodipine plasma levels.
• Grapefruit juice: can elevate drug concentrations and enhance hypotensive effects.

Moderate Interactions (Monitor Closely):\n- Beta‑blockers: additive blood‑pressure‑lowering effect; monitor hemodynamics.

• Diuretics: may increase risk of electrolyte imbalance and hypotension.
• Digoxin: potential for increased serum digoxin levels.
• NSAIDs: may blunt antihypertensive response; watch renal function.