Niglina (Glyceryl Trinitrate)

Glyceryl trinitrate, the active ingredient in Niglina, is an organic nitrate presented as a transdermal patch for transdermal use. It treats angina pectoris and is used in patients with coronary artery disease.

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

Glyceryl trinitrate is used in the management of cardiovascular conditions that involve myocardial oxygen demand.

- Prophylaxis of angina pectoris: reduces the frequency of angina attacks in patients with stable coronary disease. - Relief of acute angina attacks: provides rapid vasodilation to alleviate chest pain during an episode. - Chronic heart failure (off‑label in some jurisdictions): may improve symptoms by decreasing cardiac preload.

Adverse reactions are related to the vasodilatory properties of the nitrate and to local skin exposure.

Common Side Effects: - Headache: throbbing pain often occurring shortly after application. - Flushing: warmth and redness of the face or upper torso. - Dizziness or light‑headedness: due to transient blood pressure fall. - Hypotension: mild to moderate reduction in systolic pressure. - Skin irritation at the patch site: erythema, itching or mild rash. - Tachycardia: compensatory increase in heart rate.

Serious or Rare Side Effects: - Severe hypotension: marked drop in blood pressure requiring medical attention. - Syncope: fainting episodes caused by abrupt circulatory changes. - Myocardial infarction: rare but possible if coronary perfusion is compromised. - Allergic reaction: urticaria, angioedema or anaphylaxis. - Severe skin necrosis: extensive tissue damage at the application site.

Before prescribing Niglina, clinicians should evaluate cardiovascular status and consider patient‑specific factors.

- Assess blood pressure and heart rate: ensure values are stable before initiating therapy. - Review concomitant nitrate use: avoid additive vasodilatory effects. - Evaluate for phosphodiesterase‑5 inhibitor therapy: contraindicated due to risk of profound hypotension. - Monitor for tolerance development: efficacy may diminish with continuous use. - Educate patients on proper patch rotation: change site daily to reduce skin irritation. - Store at below 25°C: keep in the original packaging, protect from moisture and direct sunlight.

Glyceryl trinitrate may interact with several drug classes, requiring careful management.

Major Interactions (Avoid): - Phosphodiesterase‑5 inhibitors (e.g., sildenafil, tadalafil, vardenafil): can cause severe hypotension. - Other nitrates or nitroglycerin preparations: additive vasodilation may lead to dangerous blood pressure drops. - Antihypertensive agents in high doses: may amplify blood pressure‑lowering effects.

Moderate Interactions (Monitor Closely): - Beta‑blockers: may mask tachycardia, complicating assessment of hypotensive episodes. - Diuretics: can enhance the hypotensive response. - Alcohol: may increase vasodilatory effects and dizziness.