Product image of Isoprenaline Macure (Isoprenaline Hydrochloride) supplied by GNH India

Isoprenaline Macure

Active Ingredient:
Isoprenaline Hydrochloride
Origin:
EU

Isoprenaline Macure (Isoprenaline Hydrochloride)

Isoprenaline Hydrochloride, the active ingredient in Isoprenaline Macure, is a beta‑adrenergic agonist presented as an injectable solution for intravenous use. It is employed to increase heart rate and contractility in bradycardia or heart block and to produce bronchodilation in asthma and bronchospasm.
GNH India supplies Isoprenaline Macure as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals worldwide.

Manufacturer / TM Owner

Macure Pharma Aps

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Indications & Clinical Uses

Isoprenaline is a non‑selective beta‑adrenergic agonist used in cardiovascular and respiratory conditions where stimulation of β‑receptors is required.

  • Bradycardia: raises heart rate to relieve symptomatic slow rhythms.
  • Heart block: improves atrioventricular conduction by enhancing myocardial contractility.
  • Asthma: induces bronchodilation to ease airway obstruction.
  • Bronchospasm: relaxes bronchial smooth muscle during acute attacks.

How It Works

  • Isoprenaline Hydrochloride binds to both β1 and β2 adrenergic receptors, activating adenylate cyclase and increasing intracellular cyclic AMP. The rise in cAMP enhances calcium influx in cardiac myocytes, boosting heart rate and contractile force, while in bronchial smooth muscle it promotes relaxation, leading to bronchodilation.

Side Effects

Isoprenaline may cause a range of adverse reactions, from mild to severe.

Common Side Effects

  • Tachycardia
  • Palpitations
  • Headache
  • Nausea
  • Tremor
  • Flushing

Serious or Rare Side Effects

  • Severe arrhythmias
  • Myocardial ischemia
  • Pulmonary edema
  • Hypotension
  • Anaphylactic reactions
  • Severe hypertension

Precautions & Warnings

Careful monitoring and patient assessment are essential when using Isoprenaline.

  • Cardiovascular monitoring: observe heart rate and rhythm continuously during infusion.
  • Electrolyte balance: correct potassium or magnesium abnormalities before administration.
  • Ischemic heart disease: use with caution, as increased demand may precipitate angina.
  • Thyroid disorders: hyperthyroid patients may experience exaggerated tachycardia.
  • Concomitant β‑blockers: may blunt therapeutic effect and require dose adjustment.
  • Store at 2-8°C: keep refrigerated, protect from light, do not freeze.

Avoid Interactions

Isoprenaline can interact with several drug classes, requiring attention to avoid adverse outcomes.

Major Interactions (Avoid)

  • Beta‑blockers: antagonize β‑receptor stimulation, potentially causing severe bradycardia.
  • MAO inhibitors: may precipitate hypertensive crises when combined.
  • Tricyclic antidepressants: increase risk of cardiac arrhythmias.

Moderate Interactions (Monitor Closely)

  • Digitalis glycosides: additive effect on cardiac conduction, monitor for arrhythmias.
  • Diuretics: electrolyte shifts can modify cardiac response to Isoprenaline.
  • Theophylline: combined bronchodilator effect may lead to excessive tachycardia.

Frequently Asked Questions

Isoprenaline Macure is an intravenous formulation of Isoprenaline Hydrochloride used to treat symptomatic bradycardia, certain types of heart block, and acute bronchospasm associated with asthma. By stimulating β‑adrenergic receptors, it increases heart rate and improves airway patency.

Isoprenaline Hydrochloride acts as a non‑selective β‑adrenergic agonist. It binds to β1 receptors in the heart, raising cyclic AMP levels and enhancing cardiac contractility and rate. Simultaneously, activation of β2 receptors in the lungs relaxes bronchial smooth muscle, producing bronchodilation.

The dose of Isoprenaline Macure is individualized and must be determined by a qualified prescriber based on the patient’s clinical condition, response, and tolerance. Healthcare professionals adjust the infusion rate to achieve the desired therapeutic effect while monitoring vital signs.

Safety data for Isoprenaline during pregnancy and lactation are limited. It should only be used when the potential benefit to the mother outweighs any possible risk to the fetus or infant, and the decision must be made by the treating physician.

To order Isoprenaline Macure, submit an enquiry on the product page at gnhindia.com specifying the required quantity. GNH India works with hospitals, pharmacies, and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details (including cold‑chain if needed), and necessary import documentation.

Isoprenaline is a non‑selective β‑agonist, providing both cardiac stimulation (β1) and bronchodilation (β2). Compared with selective β2 agents such as albuterol, Isoprenaline has a stronger cardiac effect, making it suitable for bradyarrhythmias but requiring careful cardiovascular monitoring.

Isoprenaline Macure should be stored at 2‑8 °C in a refrigerator, protected from light, and must not be frozen or shaken. Keep the vial in its original packaging until use and discard any solution that appears discolored or particulate.

Isoprenaline is administered intravenously, typically as a continuous infusion or intermittent bolus under cardiac monitoring. The infusion rate is titrated to achieve the desired increase in heart rate or bronchodilation, and the drug must be diluted according to the manufacturer’s instructions before administration.

The most serious risks include severe arrhythmias such as ventricular tachycardia, myocardial ischemia due to increased oxygen demand, pulmonary edema from excessive vasodilation, and profound hypotension. Immediate medical attention is required if any of these events occur.

Isoprenaline is contraindicated in patients with known hypersensitivity to the drug, uncontrolled tachyarrhythmias, severe coronary artery disease, acute myocardial infarction, and in those receiving non‑selective β‑blockers without appropriate adjustment. Caution is also advised in patients with hyperthyroidism or pheochromocytoma.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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