Product image of Montelukast Normon (Montelukast) supplied by GNH India

Montelukast Normon

Active Ingredient:
Montelukast
Origin:
EU

Montelukast Normon (Montelukast)

Montelukast, the active ingredient in Montelukast Normon, is a leukotriene receptor antagonist presented as an oral tablet for oral use. It is indicated for maintenance therapy of asthma, relief of allergic rhinitis symptoms, and prevention of exercise‑induced bronchoconstriction in appropriate patient groups.

GNH India supplies Montelukast Normon as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Laboratorios Normon, S.A.

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Indications & Clinical Uses

Montelukast acts on the leukotriene pathway to control chronic airway inflammation and allergic symptoms.

  • Asthma (maintenance therapy): reduces frequency of symptoms and exacerbations.
  • Allergic rhinitis: alleviates nasal congestion, sneezing and itching.
  • Exercise‑induced bronchoconstriction: prevents bronchospasm triggered by physical activity.

How It Works

  • Montelukast selectively blocks the cysteinyl leukotriene receptor CysLT1, preventing leukotriene D4 from binding. This inhibition reduces leukotriene‑mediated bronchoconstriction, vascular permeability, and inflammatory cell recruitment in the airways, thereby improving respiratory function and decreasing allergic inflammation.

Side Effects

Montelukast is generally well tolerated, but adverse reactions can occur.

Common Side Effects

  • Headache
  • Abdominal pain
  • Cough
  • Nausea
  • Diarrhea
  • Fatigue

Serious or Rare Side Effects

  • Allergic reactions such as angioedema, rash or urticaria
  • Neuropsychiatric events including depression or suicidal thoughts
  • Elevated liver enzymes
  • Eosinophilic granulomatosis with polyangiitis
  • Severe skin reactions such as Stevens‑Johnson syndrome

Precautions & Warnings

Before initiating therapy, consider the following safety measures.

  • Liver function monitoring: obtain baseline hepatic enzymes.
  • Neuropsychiatric assessment: watch for mood changes or suicidal ideation.
  • Hepatic impairment: use with caution in severe liver disease.
  • Drug metabolism: review concomitant medications that induce or inhibit CYP enzymes.
  • Renal function: adjust if significant renal impairment is present.
  • Store at room temperature: keep in the original container, protect from moisture and heat.

Avoid Interactions

Montelukast may interact with other medicines; awareness of the interaction level helps guide clinical decisions.

Major Interactions (Avoid)

  • Strong CYP3A4 inducers (e.g., rifampin): may markedly reduce montelukast exposure.
  • Phenobarbital: can lower therapeutic effectiveness.

Moderate Interactions (Monitor Closely)

  • Antidepressants (e.g., SSRIs): may increase risk of neuropsychiatric side effects.
  • Warfarin: potential alteration of INR values.
  • Short‑acting β2‑agonists: additive bronchodilatory effect may require dose adjustment.

Frequently Asked Questions

Montelukast Normon is prescribed for maintenance therapy of asthma, relief of allergic rhinitis symptoms, and prevention of exercise‑induced bronchoconstriction. It works by blocking leukotriene receptors that contribute to airway inflammation and allergic responses.

Montelukast selectively antagonizes the cysteinyl leukotriene receptor CysLT1, preventing leukotriene D4 from triggering bronchoconstriction, mucus secretion, and inflammatory cell recruitment. This results in improved airway patency and reduced allergic inflammation.

The specific dose and dosing schedule are determined by the prescribing clinician based on the patient’s age, condition severity, and response to therapy. Patients should follow the prescriber’s instructions and not adjust the dose on their own.

Safety data for montelukast in pregnancy and lactation are limited. Prescribers weigh potential benefits against possible risks before recommending use. Women who are pregnant, planning pregnancy, or breastfeeding should discuss treatment options with their healthcare provider.

To place an order, 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.

Montelukast belongs to the leukotriene receptor antagonist class, offering an oral alternative to inhaled corticosteroids or long‑acting β2‑agonists. It is particularly useful for patients with allergic components or those who experience exercise‑induced bronchoconstriction, but it does not replace rescue bronchodilators for acute attacks.

Montelukast Normon tablets should be stored at room temperature, below 25 °C, in the original packaging. Protect them from moisture, direct sunlight and excessive heat to maintain product stability.

The medication is taken orally, usually once daily, with or without food, as directed by the prescriber. Swallow the tablet whole with a glass of water; do not crush or chew unless specifically instructed.

Serious risks include rare allergic reactions such as angioedema or severe skin eruptions, and neuropsychiatric events like depression, anxiety, or suicidal thoughts. Patients should seek immediate medical attention if they experience any of these symptoms.

Montelukast is contraindicated in individuals with known hypersensitivity to montelukast or any component of the formulation. Caution is advised for patients with severe hepatic impairment or those taking interacting medications listed under major interactions.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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