Noradrenalin Laboratoire Aguettant (Noradrenaline Tartrate)

Noradrenalin is a vasopressor that acts on the sympathetic cardiovascular pathway to restore adequate perfusion in critical care settings.

• Hypotension: restores arterial pressure when conventional fluids are insufficient.
• Shock (septic, cardiogenic, or hemorrhagic): supports systemic vascular resistance and cardiac output.
• Cardiac arrest: provides immediate pressor support during advanced life‑saving measures.

• Noradrenaline tartrate acts as a direct agonist at alpha‑1 and beta‑1 adrenergic receptors. Stimulation of alpha‑1 receptors causes peripheral vasoconstriction, increasing systemic vascular resistance, while beta‑1 activation enhances myocardial contractility and heart rate, together raising arterial pressure and cardiac output in acute circulatory failure.

Noradrenalin may be associated with a range of adverse reactions that require monitoring.

Common Side Effects

• Tachycardia: rapid heart rate due to beta‑1 stimulation.
• Headache: result of sudden vascular changes.
• Nausea: gastrointestinal upset.
• Anxiety or restlessness: central sympathomimetic effect.
• Peripheral ischemia: reduced blood flow to extremities.
• Extravasation pain: local irritation if the solution leaks from the vein.

Serious or Rare Side Effects

• Severe hypertension: excessive rise in blood pressure.
• Myocardial ischemia: reduced coronary perfusion.
• Life‑threatening arrhythmias: ventricular tachycardia or fibrillation.
• Tissue necrosis: from extravasation injury.
• Pulmonary edema: fluid accumulation in lungs.
• Acute limb ischemia: critical loss of blood flow.

Use of Noradrenalin requires careful clinical oversight and adherence to safety protocols.

• Blood pressure monitoring: continuously observe arterial pressure and adjust infusion rate.
• Cardiac monitoring: watch for arrhythmias and ischemic changes.
• Central venous access: preferred to reduce extravasation risk.
• Dose titration: start low and increase gradually based on response.
• Contraindication in pheochromocytoma: avoid use due to risk of hypertensive crisis.
• Store at 2-8°C: keep refrigerated, protect from light, do not freeze or shake.

Noradrenalin can interact with several drug classes, influencing its pressor effect and safety profile.

Major Interactions (Avoid)

• MAO inhibitors: may cause hypertensive emergencies.
• Tricyclic antidepressants: potentiate vasoconstriction.
• Beta‑blockers: blunt beta‑1 mediated cardiac effects.
• Other vasopressors: risk of excessive vasoconstriction.
• Monoamine oxidase inhibitors: synergistic pressor response.

Moderate Interactions (Monitor Closely)

• ACE inhibitors: may attenuate pressor response.
• Diuretics: affect intravascular volume and response.
• Calcium channel blockers: can modify vascular tone.
• Anesthetic agents: may enhance hypotensive effects.
• Sedatives: may mask signs of excessive hypertension.