Memantina Mylan

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Memantina Mylan

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Method of action: Psychoanaleptics

Treatment option: Dementia, Vascular Dementia

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Overview of Memantina Mylan

Quick Facts

Property Description
Active ingredient Memantine Hydrochloride (INN)
Form Film-coated tablets
Pharmacological class Anti-dementia drug; NMDA receptor antagonist
General purpose Supports cognitive functions (memory, thinking)
Origin Synthetic compound (adamantane derivative)

Memantina Mylan is a prescription-only medicinal product containing the active substance Memantine Hydrochloride, a synthetic compound derived from adamantane. The drug entity is globally classified as an anti-dementia drug and is a psychoanaleptic agent that works by modulating the central nervous system (CNS). This medication is functionally distinct from other common therapeutic agents used in earlier stages of cognitive decline, such as acetylcholinesterase inhibitors. Memantina Mylan is a single-component product focused on a specific neurotransmitter system, confirming its targeted action to support cognitive functions.


What Type of Medicine is Memantina Mylan?

Memantina Mylan is identified by its mechanism as an N-methyl-D-aspartate (NMDA) receptor antagonist. This classification, which is clinically recognized through pharmacological studies, defines its action on the brain's chemical signaling. The drug's function is centered on regulating the activity of the neurotransmitter glutamate, a critical component of learning and memory.

Memantine Hydrochloride non-competitively blocks the NMDA receptors, thereby preventing the pathological over-stimulation of nerve cells (neurons) caused by excessive glutamate signaling. This action confirms that the medicine helps to bring an important signaling process in the brain back into balance. For patients, this type of pharmacological support is generally intended to help manage the memory and thinking challenges often associated with neurodegenerative conditions.


Composition and Form: The Memantine Hydrochloride Tablet

The Memantina Mylan medicine is supplied in the dosage form of film-coated tablets, designed for convenient oral administration (swallowing). The product's core composition involves the active therapeutic agent, Memantine Hydrochloride (INN), combined with necessary inert excipients that form the structural body and the outer coating of the tablet. This presentation, consistently manufactured by Mylan in Europe, ensures the precise and consistent systemic delivery of the Memantine required to modulate the glutamatergic system throughout the CNS.

Regulatory References

  1. Memantine - Drug Information (NIH/MedlinePlus)
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What side effects are possible with Memantina Mylan?

Possible Side Effects and Safety Information

The adverse reactions associated with Memantina Mylan are generally mild to moderate in severity, as documented in clinical trials for dementia. The frequency of side effects is classified using the EMA convention (Very Common ge1/10; Common ge1/100 to <1/10; Uncommon ge1/1,000 to <1/100; Very Rare <1/10,000; Not Known).


Documented Adverse Reactions

Frequency System Organ Class Adverse Reactions
Common Nervous System, Vascular, GI, General, Hepatobiliary, Immune Dizziness, Headache, Constipation, Hypertension, Somnolence, Dyspnoea, Elevated liver function tests, Drug hypersensitivity
Uncommon Nervous System, Psychiatric, Cardiac, Vascular, Infections, GI, General Confusion, Hallucinations (mainly in severe dementia), Fatigue, Vomiting, Abnormal gait, Cardiac failure, Venous thrombosis/thromboembolism, Fungal infections
Very Rare Nervous System Seizures
Not Known GI, Hepatobiliary, Psychiatric, Renal, Skin, Blood Pancreatitis, Hepatitis, Psychotic reactions, Suicidal ideation/Suicide, Acute renal failure, Stevens-Johnson Syndrome, Agranulocytosis, Leukopenia

Safety Considerations and Restrictions

Contraindication: Memantina Mylan is contraindicated in patients with known hypersensitivity to the active substance or any excipients.

Renal and Hepatic Impairment: Dose reduction is required for patients with moderate to severe renal impairment (kidney problems). The product is not recommended for use in patients with severe hepatic impairment (liver problems).

Concomitant Use: Concomitant use with other NMDA antagonists, such as amantadine, ketamine, or dextromethorphan, should be avoided due to the risk of pharmacotoxic psychosis and increased plasma levels of memantine.

Special Patient Populations: The use of Memantina Mylan is not recommended in children under 18 years of age. Use during pregnancy is not recommended unless clearly necessary, and women should not breast-feed while taking this medication. Caution is advised for patients with a history of epileptic seizures, recent myocardial infarction, or uncontrolled hypertension.

Safety Monitoring: Factors that alkalinize the urine (e.g., drastic diet changes or severe urinary tract infections) may decrease memantine elimination and necessitate careful patient monitoring.

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Overdose and Emergency Response

Overdose and when to seek help

The official regulatory documents define the overdose profile of Memantine primarily by its impact on the Central Nervous System (CNS). Documented manifestations include a spectrum of CNS effects such as confusion, somnolence, agitation, aggression, vertigo, and psychosis, along with physical signs like gait disturbance and diplopia. Gastrointestinal symptoms, including vomiting and diarrhoea, have also been reported. Ingestion of very large amounts, such as the documented case of 2,000 mg, has been associated with severe outcomes including stupor, proconvulsiveness, and coma.

Immediate medical attention must be sought in all cases of suspected overdose. The official guidance requires contacting emergency services if the person has collapsed, had a seizure, has trouble breathing, or cannot be awakened. There is no specific antidote known to reverse the effects of Memantine. Treatment is therefore strictly symptomatic, utilizing general supportive measures. Regulatory documents outline procedures such as gastric lavage, activated charcoal, and continuous clinical monitoring for signs of CNS overstimulation. Elimination of the active substance may be enhanced by acidification of the urine in high-dose scenarios.

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Therapeutic Uses of Memantina Mylan

What Memantina Mylan Treats: Main Uses and Benefits

Memantina Mylan is commonly used to help with symptoms related to cognitive impairment within the moderate to severe stages of Alzheimer's disease, where it is considered relevant for easing the symptoms of this condition.

The medication is applied across domains where additional symptomatic support is needed, primarily to address three core areas of impairment: memory and thinking abilities, functional capacity for daily activities, and certain associated behavioral disturbances.

Supporting Cognitive Function and Functional Stability

Memantina Mylan helps address core symptoms of cognitive impairment seen in these stages, specifically aiming to provide support for crucial functions like attention and reasoning. This symptomatic assistance may help patients cope more steadily with symptom fluctuations, which includes the capacity to perform routine daily activities (ADLs). Additionally, the medication is relevant for easing non-cognitive symptoms, such as agitation or aggression, in situations involving recurrent or episodic manifestations common to the condition. This supportive action contributes to improved comfort during symptomatic periods and contributes to easing the overall symptom load.


Quick Facts

Property Description
Primary Indication Symptomatic support in moderate to severe Alzheimer's disease
Symptom Clusters Cognitive impairment, functional capacity, and associated behavioral disturbances
Patient Benefit Helps maintain a sense of stability when symptoms are more noticeable

Regulatory References

  1. European Medicines Agency overview of Memantine Mylan
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Eligibility and Restrictions for Use

This section outlines the official eligibility and non-eligibility for Memantina Mylan (memantine hydrochloride) based strictly on regulatory product labeling.

Contraindications and Eligibility Restrictions

Population Status Regulatory Rule
Absolute Prohibition Contraindicated in patients with known hypersensitivity to memantine or to any excipients in the formulation.
Age Restriction Not recommended for the pediatric population (under 18 years), as safety and efficacy have not been established.
Physiological State Breastfeeding is not recommended. Use during pregnancy should be restricted to cases where it is clearly necessary, due to unknown risk in humans.
Organ Impairment Severe Renal Impairment requires a lower maximum daily dose to maintain eligibility. Use in patients with severe hepatic impairment requires caution.
Clinical Caution Caution is advised for patients with a history of epilepsy, seizures, or specific conditions that may raise urine pH, potentially leading to increased levels of the medicine in the body.

Official regulatory documents define the eligible user base as adults who do not have a known hypersensitivity and whose physiological status and organ function permit use, often with mandatory dose restrictions for severe kidney impairment.

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What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documents classify the interactions of memantine based on its unique renal clearance pathway and its effects on the central nervous system. These documented patterns establish specific restrictions and monitoring requirements for co-administration with other substances.


Interaction Classifications (Regulatory Summary)

Classification Interacting Agents / Conditions
Avoidance Advised Other NMDA-receptor antagonists (e.g., amantadine, ketamine, dextromethorphan).
Increased Plasma Risk Drugs using the renal cationic transport system (e.g., cimetidine, ranitidine, quinidine, nicotine).
Accumulation Risk Substances or conditions that raise the urine pH (e.g., sodium bicarbonate, carbonic anhydrase inhibitors, renal tubular acidosis).
Requires Close Monitoring Oral Anticoagulants (e.g., warfarin); agents whose effects may be enhanced (L-dopa, anticholinergics) or reduced (neuroleptics, barbiturates).

Official Interaction Statements

The combined use of Memantina Mylan with other NMDA-receptor antagonists is advised to be avoided due to the potential for increased Central Nervous System-related effects, including pharmacotoxic psychosis. The pharmacokinetic profile indicates that the renal elimination of memantine is significantly reduced when the urine becomes alkaline; this means that drugs or conditions that raise the urine pH can lead to a potential accumulation of the drug in the plasma. Conversely, active substances that use the same renal cationic transport system may also lead to increased memantine plasma levels through competitive inhibition. Memantine may enhance the effects of certain agents like L-dopa, dopaminergic agonists, and anticholinergics, or reduce the effects of neuroleptics and barbiturates. Patients receiving oral anticoagulants like warfarin require close monitoring of their INR (International Normalized Ratio) due to documented post-marketing reports of potential alterations. No clinically relevant interactions are anticipated via the major CYP enzyme systems.

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Mechanism of Action

Modulating Excitatory Receptor Activity

Memantina Mylan acts as an uncompetitive antagonist of the N-methyl-D-aspartate (NMDA) receptor, the primary ion channel for the neurotransmitter glutamate. The drug is a voltage-dependent, open-channel blocker, meaning it preferentially blocks the receptor's cation channel pore only when it is activated and the neuron is excessively depolarized. This action directly modulates overactive glutamatergic signaling pathways in the central nervous system (CNS).


Mitigating Pathological Neuronal Excitotoxicity

The mechanism is centered on mitigating neuronal excitotoxicity, the process of cellular damage caused by the chronic, excessive influx of calcium ions ( Ca^2+) through overstimulated NMDA receptors. The drug's low-affinity and fast off-rate from the channel allow it to rapidly dissociate during transient, physiological synaptic activity while remaining bound during persistent, pathological activation. This modulation contributes to the preservation of neuronal viability and function.


Restoring Physiological Balance

Memantine's specific binding kinetics allow it to suppress damaging background signaling, often associated with extrasynaptic NMDA receptors, while largely preserving the transient signals necessary for physiological synaptic communication. The physiological consequence of this selective block results in the restoration of a more balanced environment within the CNS, contributing to the maintenance of the signal-to-noise ratio in synaptic transmission.

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Dosage and Administration Information

How to Use Memantina Mylan: Official Administration Guidelines

Memantina Mylan is designated for oral administration (swallowing the film-coated tablet or oral solution). The medicine may be taken with or without food and should be administered at the same time every day to ensure consistency in exposure.


Dosing Schedule and Frequency

The standard protocol mandates a three-week upward titration to reach the target 20 mg/day maintenance dose. Dosing must commence at 5 mg once daily, with mandatory 5 mg increments applied weekly. The final 20 mg maximum dose is typically continued daily, either as a single dose or split into 10 mg twice daily, based on regional regulatory practice.


Procedural and Population Constraints

A key procedural constraint is the requirement that a caregiver must be available to monitor the regular intake of the medicine upon initiation. For individuals with severe renal impairment, the maximum daily dose is reduced to 10 mg. If a single dose is missed, official guidelines state the patient should not double the next dose. If treatment is interrupted for several consecutive days, protocol dictates that dosing must be resumed at a lower dose and retitrated. Use in the paediatric population is not recommended. The 10 mg tablet is scored to facilitate the required 5 mg increments during the titration phase.

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Recent Clinical Evidence

Research evidence / Overview of studies for Memantina Mylan


Evidence for Use in Moderate to Severe Alzheimer's Disease

The main research that formed the basis for regulatory review of memantine (the active substance in Memantina Mylan) consists of short-term Randomized Controlled Trials (RCTs). These are studies where patients are randomly assigned to receive either the study medicine or an inactive substitute (placebo) to compare the measured outcomes. This research has primarily focused on adults and older adults who have been diagnosed with the moderate to severe stages of Alzheimer's disease. Studies have explored how symptoms change for patients assigned to the memantine group, compared to those assigned to the placebo group, over defined time intervals. Systematic reviews and meta-analyses described patterns of measured change that were observed across the studies. Research provides context but not individual predictions, and the findings describe group patterns related to how symptoms are measured.


Outcomes Measured in Clinical Trials

The primary outcomes evaluated in the research examined outcomes related to conditions characterized by functional limitations. Studies monitored cognitive function, including memory, attention, and reasoning, using standardized assessment scales. Outcomes reflecting daily functioning or activity level were also observed. Another focus was the patient's global status, which is the clinician's overall assessment of outcomes related to systemic or functional imbalance. Additionally, studies monitored behavioral changes, which are outcomes capturing phases of heightened symptom activity.


What Research Gaps and Uncertainty Remain

A key limitation of the evidence base is that the follow-up durations were limited to short periods (under seven months). There is limited information for long-term outcomes, meaning the certainty remains low regarding the maintenance of observed patterns over several years. Additionally, while the medicine was evaluated in conditions characterized by fluctuating manifestations, the evidence quality varies across studies, especially because data for certain groups, such as those with mild AD, remain insufficient. Research exploring short-term symptom changes in this population reported that findings were mixed, and the research does not determine whether an individual will respond similarly to the populations studied.

Key Studies & References Dementia: assessment, management and support for people living with dementia and their carers (NICE Guideline NG97)

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Frequently Asked Questions (FAQ)

Common questions about Memantina Mylan (FAQ)


Q: Can Memantina Mylan be taken at the same time as Donepezil or Aricept?

Official regulatory documents indicate that co-administration of memantine with the acetylcholinesterase inhibitors donepezil or galantamine has been studied. These studies showed that there was no clinically relevant effect on how the body processed either compound when they were taken together.


Q: What types of medications or supplements might interact with Memantina Mylan?

Regulatory documents list several types of agents that may interact with Memantina Mylan. These include other NMDA-receptor antagonists (a type of medicine with a similar action to memantine, such as amantadine or dextromethorphan), certain drugs that use the renal cationic transport system (like cimetidine), and substances that raise urine pH (like sodium bicarbonate).


Q: What happens if a person misses a dose of Memantina Mylan for a day or two?

If a patient misses a single dose, the official guideline is to not double the next dose to compensate. If treatment is interrupted for several consecutive days, the protocol dictates that dosing should be resumed at a lower dose and re-titrated (gradually increased) under professional supervision. If doses are missed, professional guidance is needed before resuming treatment.


Q: What does the research evidence indicate about the effectiveness of Memantina Mylan?

Research from controlled clinical studies indicates that the medicine has provided measured benefits on cognitive function (memory, thinking) and activities of daily living when compared to a placebo. The findings are based primarily on study participants diagnosed with moderate to severe Alzheimer's disease.


Q: Does Memantina Mylan affect a patient's ability to drive or operate machinery?

The official product information advises that the medicine can cause side effects such as dizziness and somnolence (drowsiness) which may impair a person's ability to drive or safely operate complex machinery.


Q: What kind of mental status changes or hallucinations have been reported with Memantina Mylan?

Confusion is listed as a Common side effect in clinical trials. Hallucinations are listed as Uncommon, mainly reported in patients who have severe dementia. Frequency statements for side effects are based on group data and do not predict individual experience.


Q: Is the medication designed to slow the progression of the disease or only manage symptoms?

Regulatory documents state there is no evidence that memantine prevents or slows the physical process of nerve cell death (neurodegeneration) in patients with Alzheimer’s Disease. The medication is generally understood to exert its therapeutic effect by modulating nerve signals to manage the symptoms of the condition.


Q: How can a patient's care team assess if Memantina Mylan is working for them?

Clinical studies assessed patient status using standardized scales that monitored several aspects of their condition. These aspects include cognitive function (memory and thinking), daily activity levels, and the clinician’s overall global assessment of the patient’s status. Your care team uses similar measures to track changes over time.


Q: How does the action of Memantina Mylan differ from that of cholinesterase inhibitors like Donepezil?

Memantina Mylan works by modulating the neurotransmitter glutamate at the NMDA receptor, which is involved in communication and memory. In contrast, cholinesterase inhibitors (like Donepezil) work by affecting the neurotransmitter acetylcholine. Because they act on different chemical systems in the brain, they are often used in combination.


Q: Are there any serious, rare side effects of Memantina Mylan that a patient or caregiver should be aware of?

Official information lists rare but reported events such as seizures (Very Rare). Events with unknown frequency include pancreatitis (inflammation of the pancreas), hepatitis (liver inflammation), and severe skin reactions like Stevens-Johnson Syndrome. Your care provider can offer full context on these safety reports.


Q: Does Memantina Mylan affect a patient's sleep patterns or cause unusual dreams?

Somnolence (drowsiness) is listed as a Common side effect. Other documented side effects related to sleep include Insomnia (trouble falling or staying asleep) and general sleep disorder.


Q: Does Memantina Mylan help with symptoms of vascular dementia as well as Alzheimer's disease?

While the primary regulatory indication and body of evidence focuses on moderate to severe Alzheimer's disease, clinical trials have included patients with both Alzheimer’s disease and vascular dementia. The medicine’s effect is specifically on the NMDA receptor system, which is a key component studied in neurodegenerative conditions.


Q: Are there any special dietary instructions to follow while taking Memantina Mylan?

The drug can be taken with or without food. However, the regulatory information notes that substances or conditions that raise the urine pH (which can include drastic diet changes) may slow the body's elimination of the medicine. Professional guidance is advised if significant changes to diet are being considered.


Q: Are there different forms of Memantina Mylan, such as tablets, capsules, or liquid solutions?

Yes. The active substance memantine is commercially available in several forms designed for oral use. These typically include film-coated tablets, oral solution (liquid), and sometimes extended-release capsules.


Q: Has Memantina Mylan been studied for use in children or adolescents?

The use of Memantina Mylan is not recommended in children under 18 years of age. This is because safety and efficacy in the pediatric population have not been established through clinical studies.


Q: Does the efficacy of Memantina Mylan vary significantly between different patients?

Research indicates that while the medicine can provide benefits to a patient group as a whole, the findings do not determine whether an individual will respond similarly to the populations studied. Responses to treatment can vary between patients.


Q: Can this medication cause pain in the back or joints?

Yes, regulatory-based side effect lists include back pain and joint pain among the documented reactions to the medication.


Q: Are there official research findings about Memantina Mylan's effect on agitation or aggression?

Research has examined the effect of the medicine on behavioral and psychological symptoms of Alzheimer's disease, which includes agitation and aggression. Some studies have reported measured changes in overall neuropsychiatric symptoms among study participants.


Q: Is there a known effect of Memantina Mylan on weight or appetite?

Documented side effects based on clinical trial data list both weight gain and loss of appetite as possible reactions to the medication.


Q: What is the information on using Memantina Mylan during pregnancy or breastfeeding?

Official regulatory documents state that use during pregnancy is not recommended unless a healthcare provider clearly determines it is necessary. Furthermore, regulatory information states that women are advised not to breast-feed while taking this medication.

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How should Memantina Mylan be stored and disposed of?

Storage and Environmental Conditions

Memantina Mylan film-coated tablets do not require any special storage conditions in terms of ambient temperature, as stated in the official European documentation. The product must be stored in a closed container at room temperature and generally kept from freezing. Additionally, the medicine should be protected and stored away from excess heat, moisture, and direct light. Use of the tablets is strictly forbidden after the expiry date (EXP) stated on the packaging.


Child Safety and Disposal

The product must be securely kept out of the sight and reach of children to prevent accidental ingestion. When the medicine is expired or no longer needed, it must not be thrown away via wastewater or household waste. To ensure proper pharmaceutical waste management and environmental protection, users must ask a pharmacist how to throw away the unused medicine.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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