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Amantadine and Insomnia: What Users Say

Brand names: Gocovri, Osmolex ER

Insomnia: mentioned by 3 users (5.4%)

Based on user experiences from 56 Amantadine reviews, the following table shows the most commonly mentioned side effects.

All user comments are moderated by Drugs.com. Each review is verified for relevance and screened for inappropriate content. Side effects are user-reported and not clinically verified.

dizziness 10.7%
hallucinations 7.1%
tremors 7.1%
insomnia 5.4%

Reviews for Amantadine

Commonly mentioned side effects
  • Ste...
  • Taken for 1 to 6 months
  • July 19, 2025

For Parkinson's Disease "I was taking Pramipexole for a few years and got pulled into a gambling addiction. I went off of Pramipexole in 02/2025 and the doctor prescribed Amantadine. The first few days were amazing. It felt like I didn’t have Parkinson’s at all. Then the side effects started. I started seeing my ankles swelling, was having severe insomnia, noticed dysarthria as I started to stutter and struggle to pronounce words. This was during the second week on Amantadine. I started to have problems with my bladder and it was taking over 3 minutes to empty my bladder. I was going to the bathroom a lot. I should mention that I was taking Rytary, in addition to the Amantadine. I was depressed a lot and started to lose my balance and became wobbly. My tremors were going away, so I was pushing through the first few months living with the side effects. These side effects were getting worse in May of 2025 and I had 3 falls. I got off of Amantadine in June and I have seen improvements in all of my side effects."

4 / 10
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2 Report
  • Ste...
  • Taken for less than 1 month
  • March 1, 2025

For Parkinson's Disease "I started taking it 2 weeks ago and noticed my tremors calmed down immediately. The side effects, however, are becoming unbearable. Insomnia and dizziness have been the main symptoms. I’ll give it a few more weeks before I call the doctor."

7 / 10
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1 Report
  • Lin...
  • Taken for less than 1 month
  • June 16, 2017

For Fatigue "I have been on amantadine for 2 weeks now for MS fatigue. Had absolutely no change in my symptoms, and I certainly have not had insomnia, which I was warned about. Quite the opposite."

1 / 10
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35 Report

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Reviews may be edited to correct grammar/spelling or remove inappropriate content. Reviews appearing to come from parties with a vested interest are not published. This information is not intended to endorse any medication and should not replace the expertise and judgment of healthcare professionals.