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

Memabix

Active Ingredient:
Memantine Hydrochloride
Origin:
EU

Memabix (Memantine Hydrochloride)

Memantine Hydrochloride, the active ingredient in Memabix, is a NMDA receptor antagonist presented as an oral tablet for oral use. It is indicated for the management of Alzheimer’s disease and related cognitive disorders in adults.

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

Manufacturer / TM Owner

Adamed Pharma S.A.

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Indications & Clinical Uses

  • Memantine is used in the treatment of neurodegenerative conditions that involve glutamatergic excitotoxicity.
  • Alzheimer's disease (mild to moderate): may improve cognition, memory and daily functioning.
  • Alzheimer's disease (severe): may help reduce behavioral disturbances and support functional abilities.
  • Dementia associated with Parkinson's disease: may provide modest benefit in cognitive symptoms.

How It Works

  • Memantine acts as a non‑competitive antagonist at the NMDA (N‑methyl‑D‑aspartate) receptor. By binding to the receptor-associated ion channel at a site distinct from the glutamate binding site, it blocks excessive calcium influx caused by overstimulation, thereby reducing excitotoxic neuronal injury while preserving normal synaptic transmission.

Side Effects

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

Common Side Effects

  • Dizziness
  • Headache
  • Constipation
  • Confusion
  • Fatigue
  • Insomnia

Serious or Rare Side Effects

  • Seizures
  • Hallucinations or psychosis
  • Cardiac arrhythmias
  • Severe skin rash or hypersensitivity reactions
  • Suicidal thoughts or behavior
  • Hepatic dysfunction

Precautions & Warnings

  • Memantine should be used with caution in specific patient populations and clinical situations.
  • Renal impairment: dose adjustment may be required.
  • Hepatic impairment: monitor liver function tests.
  • Cardiovascular disease: observe for arrhythmias.
  • Concomitant NMDA antagonists: avoid combined use.
  • Pregnancy and lactation: safety not established; weigh benefits against risks.
  • Store at ambient temperature: keep in original container, protect from moisture and light.

Avoid Interactions

Memantine may interact with other medications that affect the central nervous system or NMDA pathways.

Major Interactions (Avoid)

  • Amantadine: additive NMDA antagonism may increase toxicity.
  • Ketamine: combined NMDA blockade can cause severe CNS effects.
  • Dextromethorphan: risk of heightened neuropsychiatric adverse events.
  • Other NMDA antagonists: may amplify neurotoxic risk.
  • High‑dose anticholinergics: may worsen cognitive side effects.

Moderate Interactions (Monitor Closely)

  • Anticholinergic agents: monitor for increased confusion.
  • CNS depressants (e.g., benzodiazepines): watch for enhanced sedation.
  • Diuretics: assess electrolyte balance.
  • SSRIs or SNRIs: observe for mood changes.
  • Antihypertensives: monitor blood pressure fluctuations.

Frequently Asked Questions

Memabix contains memantine hydrochloride and is prescribed for the management of Alzheimer’s disease. It helps to improve cognition, memory, and daily functioning in patients with mild to moderate disease, and may also reduce behavioral symptoms in more advanced stages.

Memantine works by blocking the NMDA receptor’s ion channel in a non‑competitive manner. This reduces excessive calcium influx caused by over‑activation of glutamate pathways, protecting neurons from excitotoxic damage while allowing normal synaptic activity to continue.

The appropriate dose of Memabix is determined by the prescribing healthcare professional based on the patient’s condition, age, renal function and other factors. Dosage adjustments are made individually and should follow the prescriber’s instructions.

Safety data for memantine in pregnancy and lactation are limited. The drug should only be used if the potential benefit justifies any possible risk to the fetus or infant, and the decision must be made by a qualified 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.

Memabix (memantine) belongs to the NMDA receptor antagonist class, whereas other approved agents such as donepezil, rivastigmine and galantamine are acetylcholinesterase inhibitors. Memantine targets glutamatergic excitotoxicity, offering a different mechanism that can be used alone or in combination with cholinesterase inhibitors for additive benefit.

Memabix should be stored at ambient temperature, below 25 °C, in its original packaging. Protect the tablets from moisture, heat and direct sunlight to maintain stability and potency throughout its shelf life.

Memabix is taken orally, usually once daily with or without food, as directed by the prescribing clinician. The tablets should be swallowed whole with water and not crushed or chewed unless otherwise instructed.

Serious adverse events, though rare, can include seizures, severe psychiatric reactions such as hallucinations or suicidal thoughts, cardiac arrhythmias, and significant liver injury. Patients should be monitored closely for any new or worsening symptoms and seek medical attention promptly if they occur.

Memabix is contraindicated in patients with known hypersensitivity to memantine or any of its excipients. Caution is advised for individuals with severe renal or hepatic impairment, uncontrolled cardiovascular disease, or those taking other NMDA antagonists, as the risk of adverse effects may be heightened.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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