Product image of Memantine Eg (Memantine) supplied by GNH India

Memantine Eg

Active Ingredient:
Memantine
Origin:
EU

Memantine Eg (Memantine)

Memantine, the active ingredient in Memantine Eg, is a NMDA receptor antagonist presented as an oral formulation for oral use. It treats moderate to severe Alzheimer’s disease in adults.

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

Manufacturer / TM Owner

Eg Labo Laboratoires Eurogenerics

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Indications & Clinical Uses

Memantine is an NMDA receptor antagonist used in the management of Alzheimer’s disease.

  • Moderate to severe Alzheimer’s disease: helps maintain cognitive function and daily activities in patients with established disease.
  • Alzheimer’s disease with neuropsychiatric symptoms: may provide modest benefit in reducing agitation and aggression.

How It Works

  • Memantine acts as a non‑competitive antagonist at the N‑methyl‑D‑aspartate (NMDA) receptor ion channel. By binding within the receptor‑associated channel pore, it reduces excessive calcium influx caused by overstimulation, thereby decreasing excitotoxic neuronal injury and modulating glutamatergic neurotransmission implicated in Alzheimer’s pathology.

Side Effects

Memantine may be associated with a range of adverse reactions, varying in frequency and severity.

Common Side Effects

  • Dizziness
  • Headache
  • Constipation
  • Confusion
  • Fatigue
  • Hypertension

Serious or Rare Side Effects

  • Seizures
  • Hallucinations
  • Cardiac arrhythmia
  • Severe skin reactions such as Stevens‑Johnson syndrome
  • Suicidal thoughts or behavior
  • Hepatic injury

Precautions & Warnings

When prescribing memantine, clinicians should consider several precautionary measures to ensure safe use.

  • Renal impairment: dose adjustment may be required in patients with reduced kidney function.
  • History of seizures: monitor closely for increased seizure activity.
  • Cardiovascular disease: observe blood pressure and heart rate.
  • Concurrent NMDA antagonists: avoid combined use to reduce risk of additive neurotoxicity.
  • Pregnancy and lactation: safety not established; use only if potential benefit justifies potential risk.
  • Store at room temperature: keep in the original container, protect from moisture and light.

Avoid Interactions

Memantine can interact with other medicines, affecting its efficacy or safety.

Major Interactions (Avoid)

  • Amantadine: additive NMDA antagonism may increase neurotoxicity.
  • Ketamine: combined NMDA blockade may cause severe central nervous system depression.
  • Dextromethorphan: concurrent use may enhance adverse CNS effects.

Moderate Interactions (Monitor Closely)

  • Antihypertensives: memantine may potentiate hypotensive effect.
  • Diuretics: increased risk of dehydration and electrolyte imbalance.
  • Anticholinergic agents: may worsen cognitive impairment.

Frequently Asked Questions

Memantine Eg contains the active ingredient memantine and is indicated for the treatment of moderate to severe Alzheimer’s disease. It is used to help improve or maintain cognitive function and daily living activities in patients with established disease.

Memantine works by binding to the NMDA‑type glutamate receptor as a non‑competitive antagonist. This blocks excessive calcium entry into neurons caused by over‑activation of the receptor, reducing excitotoxic damage and helping to stabilise neuronal communication in Alzheimer’s disease.

The dosing regimen for memantine is individualized. A qualified prescriber determines the appropriate dose based on the patient’s clinical condition, response, and tolerability, following local prescribing guidelines.

Safety data for memantine during pregnancy and lactation are limited. It should only be used when the potential benefit to the mother outweighs any possible risk to the fetus or infant, and the decision should be made by a healthcare professional.

To order Memantine Eg, submit an enquiry on the product page at gnhindia.com with the required quantity. GNH India supplies hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details and any necessary import documentation.

The primary alternative class for Alzheimer’s disease is acetylcholinesterase inhibitors such as donepezil. While both classes aim to improve cognition, memantine targets glutamatergic excitotoxicity, whereas acetylcholinesterase inhibitors enhance cholinergic transmission. Clinical choice depends on disease stage, patient tolerance and physician assessment.

Memantine Eg should be stored at room temperature, below 25 °C. Keep the product in its original packaging, protect it from moisture and direct light, and ensure the container is tightly closed to maintain stability.

Memantine Eg is taken orally. The tablet (or other oral form) should be swallowed whole with water and can be taken with or without food, as directed by the prescribing clinician.

Serious adverse events include seizures, hallucinations, cardiac arrhythmias, severe skin reactions such as Stevens‑Johnson syndrome, suicidal thoughts, and liver injury. Patients should seek immediate medical attention if any of these symptoms occur.

Memantine should be avoided in individuals with known hypersensitivity to the drug, severe renal impairment without dose adjustment, or those concurrently receiving other NMDA‑receptor antagonists. Clinicians should also assess risks in patients with uncontrolled cardiovascular disease or a history of seizures.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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