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 938 583
Fatigue 583 310
Excessive daytime sleepiness (somnolence) 84 59
Jerky movements 44 28
Stiffness/spasticity 37 11
Tremor(s) 36 35

Show all 110 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
128
Mild
189
None
566

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 196 reported side effects

Dosages

Based on patients currently taking Amantadine

Dosage Patients
200 mg daily 62
100 mg daily 59
100 mg twice daily 58
100 mg three times daily 26
300 mg daily 18
400 mg daily 10
200 mg twice daily 9
4 x 50 mg/5 mL daily 2
100 mg four times daily 2
daily 2

See all 27 dosages

Why patients stopped taking Amantadine

Multiple reasons could be selected

Reason Patients
Did not seem to work 277
Side effects too severe 178
Doctor's advice 130
Other 66
Course of treatment ended 20
Personal research 16
Expense 14
Change in health plan coverage 3
See all 561 patients who've stopped taking Amantadine

Duration

Currently taking Amantadine

Duration Patients
1 - 6 months 8
6 months - 1 year 16
1 - 2 years 24
2 - 5 years 64
5 - 10 years 102
10 years or more 56

Stopped taking Amantadine

Duration Patients
Less than 1 month 100
1 - 6 months 168
6 months - 1 year 88
1 - 2 years 65
2 - 5 years 93
5 - 10 years 38
10 years or more 11
Adherence
Adherence Evaluations
Always 744
Usually 132
Sometimes 34
Never taken as prescribed 65
Burden
Burden Evaluations
Very hard to take 29
Somewhat hard to take 48
A little hard to take 134
Not at all hard to take 764
Cost per month
Cost per month Evaluations
$200+ 10
$100-199 28
$50-99 24
$25-49 65
< $25 484
Not specified 364

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) 4
Amphetamine-Dextroamphetamine (Adderall) 2

Show all 17 treatments patients report switching from

Patients stopped taking Amantadine and switched to:

Treatment Patients
Carbidopa-Levodopa (Sinemet) 16
Modafinil (Provigil) 7
Pramipexole (Mirapex) 6
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