What is Amantadine?

Category: Prescription Drugs

Most popular types: Symmetrel PK Merz Mantidan Show all

false

See also: Amantadine-amitriptyline-baclofen-clonidine-lidocaine-nifedipine-prilocaine

Amantadine is used to treat Parkinson's Disease and "parkinson-like" symptoms such as stiffness and shaking that may be caused by the use of certain drugs. It is also an antiviral medication that may be used to treat and prevent certain strains of influenza A.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Parkinson's disease 931 571
Fatigue 582 308
Excessive daytime sleepiness (somnolence) 83 57
Jerky movements (dyskinesia) 42 25
Stiffness/spasticity 37 11
Tremor(s) 36 35

Show all 111 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
Severe 92
Moderate 127
Mild 183
None 557

Commonly reported side effects and conditions associated with Amantadine

Side effect Patients
Dry mouth 22
Fatigue 17
Constipation 16
Blurry vision 12
Blotchy skin on my legs 11
Nausea 11

Show all 193 reported side effects

Dosages

Based on patients currently taking Amantadine

Dosage Patients
100 mg twice daily 62
100 mg daily 52
200 mg daily 49
100 mg three times daily 31
300 mg daily 16
400 mg daily 9
200 mg twice daily 7
4 x 50 mg/5 mL daily 2
1 tablet(s) daily 1
1.125 mg three times daily 1

See all 23 dosages

Why patients stopped taking Amantadine

Multiple reasons could be selected

Reason Patients
Did not seem to work 276
Side effects too severe 174
Doctor's advice 127
Other 66
Course of treatment ended 20
Personal research 16
Expense 14
Change in health plan coverage 3
See all 555 patients who've stopped taking Amantadine

Duration

Currently taking Amantadine

Duration Patients
1 - 6 months 16
6 months - 1 year 10
1 - 2 years 25
2 - 5 years 59
5 - 10 years 88
10 years or more 49

Stopped taking Amantadine

Duration Patients
Less than 1 month 90
1 - 6 months 173
6 months - 1 year 89
1 - 2 years 64
2 - 5 years 93
5 - 10 years 37
10 years or more 11
Adherence
Adherence Evaluations
Always 731
Usually 130
Sometimes 34
Never taken as prescribed 64
Burden
Burden Evaluations
Very hard to take 28
Somewhat hard to take 49
A little hard to take 131
Not at all hard to take 751
Cost per month
Cost per month Evaluations
$200+ 10
$100-199 26
$50-99 24
$25-49 64
< $25 478
Not specified 357

What people switch to and from

Patients started taking Amantadine after stopping:

Treatment Patients
Carbidopa-Levodopa (Sinemet) 7
Pramipexole (Mirapex) 6
Rasagiline (Azilect) 4
Ropinirole (Requip) 3
Amphetamine-Dextroamphetamine (Adderall) 2

Show all 16 treatments patients report switching from

Patients stopped taking Amantadine and switched to:

Treatment Patients
Carbidopa-Levodopa (Sinemet) 16
Modafinil (Provigil) 7
Pramipexole (Mirapex) 5
Rasagiline (Azilect) 4
Ropinirole (Requip) 4

Show all 20 treatments patients report switching to

Last updated:

111 patient evaluations for Amantadine

Oct 24, 2017 (Started Oct 15, 2017)

  • Effectiveness
    None (for fatigue)
  • Side effects
    Moderate (blurry vision)
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 100 mg Every other day
Cost: < $25 monthly

  • 0 helpful marks

May 15, 2017 (Started May 15, 2017)

  • Effectiveness
    Can’t tell (for Parkinson's disease)
  • Side effects
    Severe
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 100 mg Twice daily
Advice & Tips: I had mis read the doctors instructions. I was supposed to start with one tablet every morning and after two weeks if there was no improvement go to one tablet in the morning and one tablet in the evening. I stsrted with one tblet in the morning and one in the evening. It was too much. In a week I am going to try again with the correct dosage
Cost: < $25 monthly

  • 1 helpful mark

Mar 23, 2017 (Started May 01, 2005)

  • Effectiveness
    Slight (for Parkinson's disease)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 200 mg Daily

Dec 15, 2015 (Started May 01, 2005)

  • Effectiveness
    Slight (for Parkinson's disease)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 200 mg Daily

  • 0 helpful marks
Last updated:
Showing 3 of 111 patient evaluations for Amantadine