Glyceryl Trinitrate Evolan (Glyceryl Trinitrate)

Glyceryl Trinitrate Evolan is prescribed for conditions where rapid relief of coronary artery spasm is required. Its sublingual delivery provides quick onset of action for several clinical scenarios.

• Acute angina pectoris episodes to alleviate chest pain.
• Prophylactic treatment to prevent angina attacks before exertion.
• Management of myocardial ischemia during diagnostic stress testing.
• Relief of coronary artery spasm associated with variant (Prinzmetal) angina.
• Emergency use in settings where intravenous nitrate therapy is not immediately available.

Side effects of sublingual glyceryl trinitrate reflect its vasodilatory properties and may vary in frequency.

Common

• Headache, often described as throbbing or pressure-like.
• Flushing or warmth sensation on the face and neck.
• Dizziness or light‑headedness, especially when standing quickly.
• Low blood pressure (hypotension) causing mild faintness.

Serious

• Severe hypotension leading to syncope or loss of consciousness.
• Acute myocardial infarction precipitated by rapid blood pressure changes.
• Life‑threatening arrhythmias such as ventricular tachycardia.

When prescribing Glyceryl Trinitrate Evolan, clinicians should evaluate patient history and consider specific conditions that may increase risk of adverse outcomes before initiating therapy.

• Known hypersensitivity to glyceryl trinitrate or other organic nitrates.
• Severe anemia or low blood volume that could exacerbate hypotension.
• Recent use of phosphodiesterase‑5 inhibitors (e.g., sildenafil) due to risk of profound blood pressure drop.
• Unstable cardiovascular conditions such as recent myocardial infarction or uncontrolled hypertension.
• Pregnancy and lactation status should be assessed, as safety data are limited.
• Elderly patients may be more susceptible to dizziness and hypotension.

Glyceryl Trinitrate Evolan can interact with several medications, altering its efficacy or increasing the risk of serious side effects.

Avoid

• Phosphodiesterase‑5 inhibitors (e.g., sildenafil, tadalafil) – may cause severe hypotension.
• Other nitrate preparations – additive vasodilatory effect leading to dangerous blood pressure fall.
• Guanylate cyclase stimulators – synergistic vasodilation risk.

Use with caution

• Antihypertensive agents (beta‑blockers, ACE inhibitors, calcium channel blockers) – monitor blood pressure closely.
• Alcohol – may enhance hypotensive effect and dizziness.
• Diuretics – can potentiate volume depletion and low blood pressure.