Product image of Nitroglycerin Macure (Glyceryl Trinitrate) supplied by GNH India

Nitroglycerin Macure

Active Ingredient:
Glyceryl Trinitrate
Origin:
EU

Nitroglycerin Macure (Glyceryl Trinitrate)

Glyceryl trinitrate, the active ingredient in Nitroglycerin Macure, is a nitrate vasodilator presented as an intravenous solution for intravenous use. It provides rapid relief of chest pain and reduces cardiac workload in patients with acute angina, heart failure, and hypertensive emergencies.

GNH India supplies Nitroglycerin Macure as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals worldwide. The product conforms to EU quality standards and is intended for use under professional medical supervision.

Manufacturer / TM Owner

Macure Healthcare Limited

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Indications & Clinical Uses

  • Nitroglycerin acts on the coronary and systemic vascular smooth‑muscle to alleviate ischemic heart conditions.
  • Acute angina pectoris: rapid relief of chest pain by decreasing myocardial oxygen demand.
  • Heart failure (acute decompensation): improves cardiac output by reducing preload and afterload.
  • Hypertensive emergencies: lowers systemic blood pressure through potent vasodilation.

How It Works

  • Glyceryl trinitrate is enzymatically converted to nitric oxide within vascular smooth‑muscle cells. The released nitric oxide activates soluble guanylate cyclase, increasing cyclic GMP levels, which leads to relaxation of smooth‑muscle fibers and vasodilation of both veins and arteries, thereby reducing cardiac preload, afterload, and myocardial oxygen consumption.

Side Effects

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

Common Side Effects

  • Headache: throbbing pain due to cerebral vasodilation.
  • Flushing: warmth and redness of the skin.
  • Hypotension: drop in blood pressure, especially with rapid infusion.
  • Tachycardia: compensatory increase in heart rate.
  • Dizziness or light‑headedness.
  • Nausea or vomiting.

Serious or Rare Side Effects

  • Severe hypotension leading to syncope.
  • Myocardial infarction in susceptible patients.
  • Methemoglobinemia causing impaired oxygen delivery.
  • Anaphylactic or severe allergic reactions.
  • Life‑threatening arrhythmias.
  • Cardiogenic shock.

Precautions & Warnings

  • When using intravenous nitroglycerin, clinicians should observe several safety measures.
  • Blood pressure monitoring: check before and continuously during infusion.
  • Concurrent nitrate therapy: avoid additive hypotensive effects.
  • Severe aortic stenosis: use with caution due to fixed outflow obstruction.
  • Concomitant vasodilators: review all agents that lower blood pressure.
  • Pregnancy and lactation: risk unknown; prescribe only if clearly needed.
  • Store at room temperature: keep in original container, protect from light and moisture.

Avoid Interactions

Nitroglycerin can interact with several drug classes; awareness of these interactions helps prevent complications.

Major Interactions (Avoid)

  • Phosphodiesterase‑5 inhibitors: may cause profound hypotension.
  • Other nitrates: additive vasodilation leading to severe blood pressure drop.
  • Sodium nitroprusside: excessive vasodilatory response.

Moderate Interactions (Monitor Closely)

  • Beta‑blockers: may mask tachycardia signs.
  • Calcium channel blockers: increase risk of hypotension.
  • Diuretics: may enhance blood pressure reduction.

Frequently Asked Questions

Nitroglycerin Macure contains glyceryl trinitrate, a nitrate vasodilator used to treat acute angina pectoris, acute decompensated heart failure, and hypertensive emergencies by rapidly dilating blood vessels and reducing cardiac workload.

Glyceryl trinitrate is metabolised to nitric oxide, which activates soluble guanylate cyclase in vascular smooth‑muscle cells. This raises cyclic GMP levels, causing smooth‑muscle relaxation, venous pooling, reduced preload, and arterial dilation, thereby lowering myocardial oxygen demand.

The dosing regimen for intravenous nitroglycerin is determined by the prescribing clinician based on the patient’s condition, response, and monitoring parameters. Specific dose and infusion rates are individualized and should follow local clinical guidelines.

The safety of glyceryl trinitrate in pregnancy and lactation has not been definitively established. It should be used only if the potential benefit justifies any potential risk to the fetus or infant, and under strict medical supervision.

To place an order, 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 import documentation.

Nitroglycerin is a fast‑acting nitrate that provides immediate vasodilation, whereas other antianginals such as beta‑blockers or calcium‑channel blockers act by reducing heart rate or myocardial contractility. Nitroglycerin is preferred for rapid symptom relief, while other agents are used for long‑term management.

Store the product at room temperature, below 25 °C, in its original packaging. Protect it from light, moisture, and extreme temperatures to maintain stability. Follow any additional handling instructions provided with the shipment.

Nitroglycerin Macure is administered intravenously under professional supervision. It is typically given as a continuous infusion or intermittent bolus, with dosage titrated to achieve the desired hemodynamic effect while monitoring blood pressure and heart rate.

The most serious risks include severe hypotension, myocardial infarction, life‑threatening arrhythmias, and methemoglobinemia. Prompt recognition of these events and immediate medical intervention are essential.

Patients with known hypersensitivity to nitrates, those taking phosphodiesterase‑5 inhibitors, or individuals with severe aortic stenosis should avoid nitroglycerin unless a specialist determines that benefits outweigh risks.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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