Product image of Memantine Genepharm (Memantine Hydrochloride) supplied by GNH India

Memantine Genepharm

Active Ingredient:
Memantine Hydrochloride
Origin:
EU

Memantine Genepharm (Memantine Hydrochloride)

Memantine hydrochloride, the active ingredient in Memantine Genepharm, is a NMDA receptor antagonist presented as an oral tablet for oral use. It is used to treat cognitive decline associated with Alzheimer’s disease in adults.

GNH India supplies Memantine Genepharm as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide. The company adheres to strict quality standards and provides regulatory‑compliant shipments to global markets.

Manufacturer / TM Owner

Genepharm S.A.

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Indications & Clinical Uses

  • Memantine, an NMDA receptor antagonist, is employed in the management of neurodegenerative disorders where glutamate‑mediated excitotoxicity contributes to neuronal loss.
  • Alzheimer's disease: improves cognition, functional abilities, and global clinical status in patients with moderate to severe disease.
  • Alzheimer's disease (mild to moderate): used as an adjunct to cholinesterase inhibitors to support cognitive function.

How It Works

  • Memantine hydrochloride binds to the NMDA (N‑methyl‑D‑aspartate) receptor at a site distinct from the glutamate binding site, acting as a non‑competitive antagonist. By reducing excessive calcium influx through the receptor channel, it diminishes glutamate‑induced excitotoxic neuronal injury, which is implicated in the progression of Alzheimer’s disease and other neurodegenerative conditions.

Side Effects

Adverse reactions to Memantine Genepharm vary in frequency and severity.

Common Side Effects

  • Dizziness
  • Headache
  • Constipation
  • Fatigue

Serious or Rare Side Effects

  • Seizures
  • Severe allergic reaction (anaphylaxis)
  • Stevens‑Johnson syndrome

Precautions & Warnings

  • Memantine Genepharm should be used with caution in several clinical situations.
  • Renal impairment: dose adjustment may be required.
  • History of seizures: monitor for increased seizure activity.
  • Cardiovascular disease: use cautiously due to possible blood pressure changes.
  • Concomitant NMDA antagonists: avoid combined use.
  • Pregnancy and breastfeeding: risk unknown, discuss with healthcare provider.
  • Store at room temperature: keep in original packaging, protect from moisture and light.

Avoid Interactions

Memantine may interact with other medicines, requiring attention to avoid adverse outcomes.

Major Interactions (Avoid)

  • Amantadine: increased risk of neurotoxicity.
  • Ketamine: additive NMDA blockade.
  • Other NMDA antagonists: avoid concurrent use.

Moderate Interactions (Monitor Closely)

  • Anticholinergic agents: may worsen cognitive impairment.
  • CNS depressants (e.g., benzodiazepines, opioids): may increase dizziness.
  • Diuretics: may affect serum electrolyte balance.

Frequently Asked Questions

Memantine Genepharm contains memantine hydrochloride, which is indicated for the treatment of cognitive decline associated with Alzheimer’s disease. It is prescribed for adults with moderate to severe disease to help improve memory, reasoning, and the ability to perform daily activities.

Memantine acts as a non‑competitive antagonist of the NMDA receptor. By blocking excessive activation of this receptor, it reduces calcium influx and limits glutamate‑mediated excitotoxic damage to neurons, a process that contributes to the progression of Alzheimer’s disease.

The dosage of Memantine Genepharm is determined by the prescribing clinician based on the patient’s condition, age, renal function, and other factors. The prescriber will set the appropriate dose and titration schedule according to current clinical guidelines.

Safety data for memantine in pregnancy and lactation are limited. The product should only be used if the potential benefit justifies any potential risk to the fetus or infant. Patients who are pregnant, planning pregnancy, or breastfeeding should discuss risks and alternatives with their healthcare professional.

To place an order, submit an enquiry on the Memantine Genepharm 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.

Memantine belongs to the NMDA‑receptor antagonist class, whereas many other Alzheimer’s drugs are cholinesterase inhibitors (e.g., donepezil, rivastigmine). Memantine targets excitotoxic pathways, while cholinesterase inhibitors enhance acetylcholine signaling. In practice, memantine is often used alone in moderate‑severe disease or combined with a cholinesterase inhibitor for broader symptom control.

Store Memantine Genepharm at room temperature, below 25 °C. Keep the tablets in the original blister pack or container, protect them from moisture, heat and direct sunlight, and keep out of reach of children.

Memantine Genepharm is taken orally, usually with water. The tablet should be swallowed whole and not crushed or chewed unless otherwise directed by a healthcare professional.

Serious adverse events, although rare, include seizures, severe allergic reactions such as anaphylaxis, and life‑threatening skin conditions like Stevens‑Johnson syndrome. Patients should seek immediate medical attention if they experience any signs of these reactions.

Memantine Genepharm is contraindicated in individuals with known hypersensitivity to memantine or any of its excipients. It should also be avoided in patients with severe renal impairment unless dose adjustments are made, and in those with a history of uncontrolled seizures without appropriate monitoring.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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