Medication info
Namenda 20 mg (Memantine Hydrochloride)

Namenda 20 mg (Memantine Hydrochloride)

Prescription medicationTablet경구
Ingredient · strength
Memantine Hydrochloride›20mg / 1 tablet
Manufacturer / importer
엔비케이제약(주)
Appearance
White rectangular film-coated tablet
Packaging
30 tablets/bottle, 100 tablets/bottle
Approval status
Active

MFDS item code 202500713 · Approved 2025.03.27

Summary

Main use
Treatment of moderate to severe Alzheimer's disease
Who takes it
Adults
Adult dose
This medicine is administered orally once daily and should be taken at the same time every day. If necessary, it can be administered twice daily. 1. Dose increase: The maximum daily dose is 20 mg, and it should be increased by 5 mg weekly for the first three weeks. - First week (days 1-7): administer 5 mg daily - Second week (days 8-14): administer 10 mg daily - Third week (days 15-21): administer 15 mg daily

Ingredients

Manufacturer
엔비케이제약(주)

Efficacy & effects

Treatment of moderate to severe Alzheimer's disease

  • Alzheimer's disease
View approved original text

This medication is used for the treatment of moderate to severe Alzheimer's disease.

How to take

Adult dose

This medicine is administered orally once daily and should be taken at the same time every day. If necessary, it can be administered twice daily. 1. Dose increase: The maximum daily dose is 20 mg, and it should be increased by 5 mg weekly for the first three weeks. - First week (days 1-7): administer 5 mg daily - Second week (days 8-14): administer 10 mg daily - Third week (days 15-21): administer 15 mg daily

Precautions

This medicine should not be used in patients who have an allergic reaction to its components. This medicine should not be administered to patients with severely impaired liver function or significantly reduced kidney function. This medicine contains lactose, so it should not be taken by patients with a genetic disorder that prevents the digestion of lactose. Patients with epilepsy or a history of seizures, or those prone to seizures, should use this medicine with caution. Concomitant use with specific medications such as amantadine, ketamine, and dextromethorphan may increase central nervous system side effects; therefore, it should not be combined with these medications. In cases where urine acidity (pH) changes, the effect and side effects of this medicine may vary, so careful monitoring is required. There is insufficient safety data for patients with myocardial infarction, heart failure, or uncontrolled hypertension; therefore, use should be cautious. This medicine may cause side effects such as dizziness, headache, constipation, drowsiness, and hypertension; consult a doctor if symptoms occur. This medicine may interact with other medications, so if you are currently taking any medications, it is vital to inform the doctor, particularly when using antipsychotic drugs, muscle relaxants, or anticoagulants. Women who are pregnant or may become pregnant should carefully consider the risks and benefits before taking this medicine, and it is recommended to discontinue breastfeeding while using this medicine. The safety and efficacy of this medicine in children or adolescents under 18 years have not been established, so use should be avoided. In cases of overdose, severe symptoms such as coma, hallucinations, and seizures may occur; thus, immediate medical attention must be sought. This medicine may affect the central nervous system, so caution is required while driving or operating machinery. It should be stored out of reach of children, and it is safest not to transfer it to another container.

Side effects and when to seek care immediately

Serious side effects

  • seizure
  • psychotic reaction
  • hallucination
  • heart failure
  • hypertension
  • thrombosis
  • shortness of breath
  • hepatitis

Mild side effects

  • dizziness
  • headache
  • constipation
  • drowsiness
  • hypertension
  • drowsiness
  • confusion
  • hallucination
  • psychotic reaction
  • balance disorder
Show 14 more
  • gait disturbance
  • seizure
  • heart failure
  • thrombosis
  • shortness of breath
  • vomiting
  • elevated liver function tests
  • hepatitis
  • fatigue
  • restlessness
  • psychiatric disorder
  • visual hallucination
  • delirium
  • unconsciousness

Not everyone experiences these, and they can vary from person to person.

Storage

This medicine can deteriorate due to air or moisture, so it must be stored in a tightly sealed container. It is important to maintain the storage temperature between 1 to 30 degrees Celsius.

Appearance and packaging

Appearance

White rectangular film-coated tablet

Package unit

30 tablets/bottle, 100 tablets/bottle

Same-ingredient medicines

Even with the same ingredient, strength, dosage form and how it is taken can differ.

Even with the same ingredient, the dose and directions can differ by strength and dosage form. Talk to a doctor or pharmacist before switching from a medication you are already taking.

Questions about this medicine

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For anything that needs medical judgment, consult a doctor or pharmacist.

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This drug information is based on data provided by the Korea Ministry of Food and Drug Safety.
Consult a doctor or pharmacist for accurate dosage, administration, and usage instructions.