Nitroglycerine Macure (Glyceryl Trinitrate)

Glyceryl trinitrate, the active ingredient in Nitroglycerine Macure, is a nitrate vasodilator presented as an intravenous solution for intravenous administration. It rapidly relieves coronary artery spasm, reduces myocardial oxygen demand, and is employed in the acute management of angina pectoris, myocardial ischemia, acute heart failure, and hypertensive emergencies in hospital patients.

GNH USA supplies Nitroglycerine Macure as a licensed, GDP‑compliant international pharmaceutical supplier, providing the product to hospitals, pharmacies and clinics worldwide.

Nitroglycerine Macure (glyceryl trinitrate) is used in the nitrate vasodilator class to manage acute coronary and cardiac conditions.

- Acute angina pectoris: rapid relief of chest pain by dilating coronary arteries. - Myocardial ischemia: improves oxygen delivery by reducing cardiac workload. - Acute heart failure: lowers preload and afterload to ease ventricular strain. - Hypertensive emergencies: produces prompt blood pressure reduction through systemic vasodilation.

Adverse reactions may occur with intravenous glyceryl trinitrate and are categorized by frequency.

Common Side Effects: - Headache: throbbing pain due to cerebral vasodilation. - Flushing: warmth and redness of the skin. - Hypotension: drop in blood pressure causing dizziness. - Tachycardia: compensatory increase in heart rate. - Nausea: mild gastrointestinal upset. - Dizziness: feeling of light‑headedness.

Serious or Rare Side Effects: - Severe hypotension: can lead to syncope or shock. - Myocardial infarction: rare but possible in vulnerable patients. - Methemoglobinemia: abnormal hemoglobin reducing oxygen transport. - Allergic reactions: rash, itching, or anaphylaxis. - Life‑threatening arrhythmias: irregular heart rhythms requiring urgent care.

Careful monitoring and specific actions are required when using intravenous glyceryl trinitrate. - Monitor blood pressure: observe for excessive hypotension after each dose. - Assess heart rate: watch for reflex tachycardia or bradycardia. - Evaluate cardiac status: avoid in patients with recent myocardial infarction unless directed. - Use caution with concurrent vasodilators: risk of additive blood pressure lowering. - Pregnancy category B: consider risk‑benefit ratio before use in pregnant women. - Store at room temperature: keep in original container, protect from light and moisture.

Glyceryl trinitrate can interact with several drug classes, requiring avoidance or close monitoring.

Major Interactions (Avoid): - Phosphodiesterase‑5 inhibitors (e.g., sildenafil): may cause profound hypotension. - Other nitrates or nitrites: additive vasodilatory effect leading to severe hypotension. - Guanylate cyclase stimulators: excessive vasodilation risk. - Severe anemia: heightened sensitivity to blood pressure changes.

Moderate Interactions (Monitor Closely): - Antihypertensive agents (beta‑blockers, ACE inhibitors): may require dose adjustment. - Diuretics: can amplify volume‑depletion effects. - Alcohol: potentiates hypotensive response.