Product image of Mononitron Ep (Isosorbide Mononitrate) supplied by GNH India

Mononitron Ep

Active Ingredient:
Isosorbide Mononitrate
Origin:
EU

Mononitron Ep (Isosorbide Mononitrate)

Isosorbide Mononitrate, the active ingredient in Mononitron Ep, is a nitrate vasodilator presented as an oral tablet for oral use. It is employed to prevent and treat angina pectoris in adults, helping to reduce the frequency of chest pain episodes by improving myocardial oxygen supply. It is indicated for patients with chronic stable angina and is taken once daily as prescribed.

GNH India supplies Mononitron Ep as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide. The company adheres to stringent quality standards and provides reliable logistics for global distribution.

Manufacturer / TM Owner

Zentiva S.A.

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Indications & Clinical Uses

Isosorbide Mononitrate acts on the nitrate pathway to relieve angina symptoms.

  • Prophylaxis of angina pectoris: reduces the frequency of angina attacks in patients with known coronary artery disease.
  • Treatment of chronic stable angina: improves exercise tolerance and decreases chest pain episodes during daily activities.
  • Ischemic heart disease: provides symptomatic relief by enhancing myocardial oxygen delivery.

How It Works

  • Isosorbide Mononitrate is metabolized to release nitric oxide, which activates guanylate cyclase in vascular smooth muscle. The resulting increase in cyclic GMP leads to relaxation of arterial and venous vessels, lowering preload and afterload, and thereby improving myocardial oxygen supply while reducing cardiac workload.

Side Effects

Common Side Effects

  • Headache: mild to moderate throbbing pain, often transient.
  • Dizziness or light‑headedness: related to blood pressure reduction.
  • Flushing: warm sensation and reddening of the skin.
  • Nausea or abdominal discomfort: gastrointestinal upset.
  • Palpitations: awareness of heartbeat, usually benign.

Serious or Rare Side Effects

  • Severe hypotension: marked drop in blood pressure requiring medical attention.
  • Syncope: sudden loss of consciousness due to low blood pressure.
  • Myocardial infarction (rare): chest pain persisting despite therapy.
  • Life‑threatening allergic reaction: rash, swelling, or difficulty breathing.
  • Methemoglobinemia: rare disorder causing reduced oxygen delivery.

Precautions & Warnings

Before initiating therapy, consider the following precautions.

  • Dose adjustment: evaluate renal or hepatic impairment and adjust dose accordingly.
  • Severe hypotension: avoid use in patients with markedly low blood pressure.
  • Concomitant PDE‑5 inhibitors: do not combine with sildenafil, tadalafil, or similar agents.
  • Monitor for cyanosis or methemoglobinemia, especially in patients with pre‑existing blood disorders.
  • Store at room temperature: keep in the original pack, protect from moisture and light.

Avoid Interactions

Isosorbide Mononitrate may interact with several drug classes.

Major Interactions (Avoid)

  • Other nitrates (e.g., nitroglycerin): additive vasodilation can cause dangerous hypotension.
  • Phosphodiesterase‑5 inhibitors (e.g., sildenafil): risk of severe blood pressure fall.

Moderate Interactions (Monitor Closely)

  • Antihypertensive agents: may enhance blood‑pressure‑lowering effect.
  • Diuretics: can increase risk of orthostatic hypotension.
  • Alcohol: may potentiate vasodilatory side effects such as dizziness and flushing.

Frequently Asked Questions

Mononitron Ep contains isosorbide mononitrate, which is prescribed to prevent and treat angina pectoris, especially in patients with chronic stable angina. By improving blood flow to the heart muscle, it helps reduce the frequency and severity of chest pain episodes during physical activity or stress.

Isosorbide mononitrate is converted in the body to nitric oxide, a potent vasodilator. Nitric oxide relaxes smooth muscle in arteries and veins, lowering both preload and afterload. This decreases the heart's oxygen demand while increasing oxygen delivery to the myocardium, alleviating angina symptoms.

The specific dose of Mononitron Ep is determined by the prescribing clinician based on the patient’s medical condition, response to therapy, and any concomitant medications. Dosage adjustments may be needed for renal or hepatic impairment, and the medication is typically taken once daily as directed.

The safety of isosorbide mononitrate in pregnancy and lactation has not been definitively established. It should only be used if the potential benefit justifies any potential risk to the fetus or infant, and the decision should be made in consultation with a qualified healthcare professional.

To request Mononitron Ep, visit the product page on gnhindia.com, enter the required quantity, and submit the enquiry form. GNH India works with hospitals, pharmacies, and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details, and any necessary import documentation.

Mononitron Ep belongs to the nitrate class, which differs from beta‑blockers or calcium‑channel blockers in its mechanism of releasing nitric oxide to dilate vessels. Nitrates are particularly effective for rapid symptom relief and prophylaxis, whereas other classes may target heart rate or calcium‑mediated contraction. Choice of therapy depends on individual patient profile and physician judgment.

Mononitron Ep should be stored at room temperature, below 25 °C, in its original packaging. Keep the tablets away from moisture, heat, and direct sunlight to maintain stability and potency throughout the shelf life.

Mononitron Ep is taken orally, usually as a whole tablet with a glass of water. It is generally prescribed for once‑daily dosing, but the exact schedule and timing should follow the prescriber’s instructions to ensure optimal therapeutic effect.

The most serious risks include severe hypotension, syncope, and rare cases of myocardial infarction or life‑threatening allergic reactions. Patients should be educated to recognize signs of dangerously low blood pressure, such as fainting or extreme dizziness, and seek immediate medical attention if they occur.

Mononitron Ep is contraindicated in patients with known hypersensitivity to isosorbide mononitrate or any nitrate, those with severe hypotension, and individuals who have recently used other nitrate preparations or phosphodiesterase‑5 inhibitors. Clinicians should also exercise caution in patients with certain cardiac conditions, such as recent myocardial infarction, unless specifically indicated.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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