Product image of Isosorbide Mononitraat Retard Rph (Isosorbide Mononitrate) supplied by GNH India

Isosorbide Mononitraat Retard Rph

Active Ingredient:
Isosorbide Mononitrate
Origin:
EU

Isosorbide Mononitraat Retard Rph (Isosorbide Mononitrate)

Isosorbide mononitrate, the active ingredient in Isosorbide Mononitrate Retard Rph, is a nitrate presented as an oral extended‑release tablet for oral use. It is used to prevent angina pectoris and to treat chronic stable angina in adults.
GNH India supplies Isosorbide Mononitrate Retard Rph as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Rph Pharmaceuticals Ab

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Indications & Clinical Uses

  • Isosorbide mononitrate is a nitrate that acts on the coronary circulation to relieve myocardial oxygen demand.
  • Angina pectoris: reduces the frequency and severity of angina attacks.
  • Chronic stable angina: improves exercise tolerance and reduces symptom burden.
  • Ischemic heart disease: helps prevent angina episodes in patients with documented coronary artery disease.

How It Works

  • After oral administration, isosorbide mononitrate is metabolized to nitric oxide, which activates guanylate cyclase in vascular smooth muscle. The resulting increase in cyclic GMP leads to relaxation of arterial and venous vessels, decreasing preload and afterload and thereby lowering myocardial oxygen consumption.

Side Effects

Common Side Effects

  • Headache: mild to moderate, often transient.
  • Dizziness or light‑headedness, especially on standing.
  • Flushing of the face or neck.
  • Nausea or mild gastrointestinal discomfort.
  • Palpitations or tachycardia.

Serious or Rare Side Effects

  • Severe hypotension leading to syncope.
  • Allergic reactions such as rash, pruritus, or angioedema.
  • Rare cases of myocardial infarction or unstable angina.
  • Life‑threatening hypotensive crisis when combined with other vasodilators.
  • Hemorrhagic events in patients with coagulopathy.

Precautions & Warnings

Before initiating therapy, consider the following precautions:

  • Assess cardiovascular status: ensure stable hemodynamics.
  • Avoid concurrent use with phosphodiesterase‑5 inhibitors: risk of profound hypotension.
  • Monitor blood pressure regularly, especially after dose changes.
  • Adjust dose in hepatic impairment: reduced clearance may increase exposure.
  • Store at room temperature: keep in the original pack, protect from moisture and direct sunlight.

Avoid Interactions

Isosorbide mononitrate may interact with several drug classes.

Major Interactions (Avoid)

  • Other nitrates (e.g., nitroglycerin, isosorbide dinitrate): additive vasodilation.
  • Phosphodiesterase‑5 inhibitors (sildenafil, tadalafil): risk of severe hypotension.
  • Sodium nitrite: potentiates nitrate effect.

Moderate Interactions (Monitor Closely)

  • Antihypertensives (ACE inhibitors, beta‑blockers, calcium channel blockers): may enhance blood pressure lowering.
  • Diuretics: can increase orthostatic hypotension.
  • Alcohol: may intensify vasodilatory effects.

Frequently Asked Questions

Isosorbide Mononitrate Retard Rph is prescribed to prevent episodes of angina pectoris and to manage chronic stable angina. By dilating blood vessels, it reduces the heart’s workload and improves oxygen delivery to the myocardium.

After oral intake, isosorbide mononitrate is converted to nitric oxide, which relaxes vascular smooth muscle through the cyclic GMP pathway. This vasodilation lowers both preload and afterload, decreasing myocardial oxygen demand and relieving angina.

The specific dose and dosing schedule are determined by the prescribing clinician based on the patient’s condition, response, and tolerability. No standardized regimen is provided here.

Safety data for use in pregnancy and lactation are limited. The medication should only be used if the potential benefit justifies the potential risk to the fetus or infant, and decisions should be made by a qualified healthcare professional.

Submit an enquiry on the product page at gnhindia.com, specifying the required quantity. 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.

Isosorbide mononitrate belongs to the nitrate class, offering sustained nitric‑oxide release. Compared with short‑acting nitrates, it provides more stable plasma levels and fewer dosing fluctuations, but it shares similar vasodilatory effects with agents such as nitroglycerin and may be used when those alternatives are unsuitable.

Store the tablets at room temperature, below 25 °C, in the original packaging. Keep them away from moisture, direct sunlight, and excessive heat to maintain product stability.

The medication is taken orally, usually as an extended‑release tablet, with or without food as directed by the prescriber. Swallow the tablet whole; do not crush or chew, as this can alter the release profile.

Serious risks include severe hypotension, syncope, and rare allergic reactions such as angioedema. Patients should seek immediate medical attention if they experience fainting, a sudden drop in blood pressure, or signs of a severe allergic response.

Individuals with known hypersensitivity to isosorbide mononitrate or other nitrates, those taking phosphodiesterase‑5 inhibitors, and patients with severe hypotension or recent myocardial infarction should avoid this medication unless specifically advised by a healthcare professional.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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