Natispray (Glyceryl Trinitrate)

Glyceryl trinitrate, the active ingredient in Natispray, is an organic nitrate presented as a sublingual spray for sublingual use. It treats acute angina pectoris and is used for prophylaxis of angina attacks in adults, releasing nitric oxide to cause rapid vasodilation and lower myocardial oxygen demand.

GNH USA supplies Natispray as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Natispray (glyceryl trinitrate) acts on the cardiovascular system to relieve myocardial ischemia.

Acute angina pectoris: rapid relief of chest pain during an angina episode. Prophylaxis of angina attacks: prevention of recurrent angina episodes. Exercise‑induced angina: reduction of symptoms during physical exertion.

Common Side Effects: - Headache: throbbing pain often occurring shortly after administration. - Flushing: warmth and redness of the face or neck. - Dizziness or light‑headedness: due to transient blood pressure drop. - Hypotension: mild to moderate reduction in blood pressure. - Nausea: occasional upset stomach. - Palpitations: awareness of heartbeat.

Serious or Rare Side Effects: - Severe hypotension: marked drop in blood pressure requiring medical attention. - Syncope: fainting episodes. - Methemoglobinemia: rare discoloration of blood affecting oxygen delivery. - Reflex tachycardia: rapid heart rate in response to vasodilation. - Allergic reaction: rash, itching, or swelling. - Anaphylaxis: life‑threatening systemic allergic response.

Before using Natispray, consider the following precautions. - Severe hypotension: avoid if blood pressure is already low; monitor closely. - Concomitant phosphodiesterase‑5 inhibitors: contraindicated due to risk of profound hypotension. - Anemia or low hemoglobin: use with caution as oxygen delivery may be further compromised. - Patient positioning: advise sitting or lying down before administration to reduce dizziness. - Storage: Store at room temperature: keep in the original container, protect from moisture and light.

Natispray may interact with several medicines.

Major Interactions (Avoid): - Sildenafil, tadalafil, vardenafil: combined use can cause severe hypotension. - Other organic nitrates (e.g., isosorbide dinitrate): additive vasodilatory effect. - Guanylate cyclase stimulators (e.g., riociguat): risk of excessive blood pressure fall.

Moderate Interactions (Monitor Closely): - Antihypertensives (beta‑blockers, ACE inhibitors, ARBs): may enhance blood pressure‑lowering effect. - Diuretics: potential for additive hypotensive response. - Calcium channel blockers: may increase vasodilatory effect. - Certain antidepressants (e.g., SSRIs): monitor for dizziness or headache.