What is Memantine?

Category: Prescription Drugs

Most popular types: Namenda Namenda XR Ebixa Show all

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Memantine is the first in a novel class of Alzheimer's disease medications acting on the glutamatergic system. It is also being tested for use as a cognitive enhancer in a variety of other conditions.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Cognitive impairment 41 16
Memory problems 30 16
Amyotrophic lateral sclerosis 24 7
Early onset dementia 19 0
Corticobasal degeneration 15 1
Brain fog 13 6

Show all 55 reasons taken


  • Major
  • Moderate
  • Slight
  • None
  • Can't tell

Side effects

Side effects as an overall problem

Side effects as an overall problem
Severity Evaluations Percentage
Severe 3
Moderate 7
Mild 10
None 48

Commonly reported side effects and conditions associated with Memantine

Side effect Patients Percentage
Ataxia (lack of coordination) 1
Balance problems 1
Brain fog 1
Constipation 1
Difficulty urinating (dysuria) 1
Dizziness 1

Show all 16 reported side effects

Why patients stopped taking Memantine

Multiple reasons could be selected

Reason Patients Percentage
Did not seem to work 21
Doctor's advice 10
Side effects too severe 10
Expense 5
Other 3
Change in health plan coverage 2
Personal research 1
See all 40 patients who've stopped taking Memantine

Duration

Stopped taking Memantine

Duration Patients Percentage
Less than 1 month 10
1 - 6 months 8
6 months - 1 year 4
1 - 2 years 7
2 - 5 years 6
5 - 10 years 3
10 years or more 2
Adherence
Adherence Evaluations Percentage
Always 59
Usually 6
Sometimes 1
Never taken as prescribed 2
Burden
Burden Evaluations Percentage
Very hard to take 2
Somewhat hard to take 4
A little hard to take 12
Not at all hard to take 50
Cost per month
Cost per month Evaluations Percentage
$200+ 1
$100-199 4
$50-99 12
$25-49 23
< $25 5
Not specified 23

What people switch to and from

Patients started taking Memantine after stopping:

Treatment Patients Percentage
Pregabalin (Lyrica) 2
Amantadine (Symmetrel) 1
Butalbital-acetaminophen-caffeine (Fioricet) 1
Duloxetine (Cymbalta) 1
Levetiracetam (Keppra) 1

Show all 8 treatments patients report switching from

Patients stopped taking Memantine and switched to:

Treatment Patients Percentage
Candesartan (Atacand) 1
Memantine (Namenda) 1
Paliperidone (Invega) 1
Last updated:

7 patient evaluations for Memantine

May 1, 2013 (Started Jan 15, 2013)

  • Effectiveness
    None (for migraine)
  • Side effects
    Severe (difficulty urinating (dysuria), extreme sedation, ataxia (lack of coordination))
  • Adherence
    Always
  • Burden
    Very hard to take
Dosage: 20 mg Daily
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Cost: $25-49 monthly

Feb 16, 2013 (Started Jan 15, 2013)

  • Effectiveness
    Can't tell (for migraine)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    A little hard to take
Dosage: 20 mg Daily
Cost: $25-49 monthly

  • 0 helpful marks

Dec 12, 2010 (Started Nov 23, 2010)

  • Effectiveness
    Moderate (for trying to get scrip - delay progression)
  • Effectiveness
    Moderate (for slow deterioration)
  • Side effects
    Mild
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 10 mg Daily
Advice & Tips: Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Phasellus faucibus turpis sed mi maximus mattis.
Cost: $100-199 monthly

Nov 24, 2010 (Started Nov 23, 2010)

  • Effectiveness
    Major (for trying to get scrip - delay progression)
  • Effectiveness
    Can't tell (for slow deterioration)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 10 mg Daily
Advice & Tips: Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Phasellus faucibus turpis sed mi maximus mattis.
Cost: $100-199 monthly

  • 0 helpful marks

Dec 11, 2010 (Started May 06, 2009)

  • Effectiveness
    Slight (for amyotrophic lateral sclerosis)
  • Side effects
    Mild
  • Adherence
    Never taken as prescribed
  • Burden
    Not at all hard to take
Dosage: 10 mg Daily

  • 0 helpful marks
Last updated:
Showing 3 of 7 patient evaluations for Memantine