Skip to main content

CoQ10 and Tiredness: What Users Say

Tiredness: mentioned by 3 users (8.3%)

Based on user experiences from 36 CoQ10 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 13.9%
lightheadedness 11.1%
shortness of breath 11.1%
anxiety 8.3%
blood pressure 8.3%
diarrhea 8.3%
fatigue 8.3%
tiredness 8.3%
weakness 8.3%

Reviews for CoQ10

Showing 3 reviews tagged with "tiredness". Clear filters to view all 36 reviews.
Commonly mentioned side effects
  • Mar...
  • Taken for less than 1 month
  • April 22, 2020

For Dietary Supplementation "I practice cycling on a regular basis (200 miles a week) and started taking CoQ10 because it's supposed to make your muscles produce more energy, but I've been feeling sluggish for a week now. The first day I felt tired, I thought it was regular fatigue and rode easy for 4 days, but I still feel sluggish and without the energy that I always have in my rides. I've seen reviews of people that cause them to feel tired, and maybe that is what CoQ10 is causing me. I will stop taking it and will come back to post again."

1 / 10
Was this helpful?YesNo
69 Report
  • cha...
  • Taken for 10 years or more
  • March 18, 2023

For Dietary Supplementation "I had taken this religiously 10 years ago at fairly high doses. It really gave me energy. Older now, having developed a lot of sensitivities, I tried it again for fatigue and found it actually made me more tired and dizzy. I stopped the supplement and got better, then tried it again and had the same symptoms. A powerful lesson for me that supplements can have very different effects on different people depending on their physiology."

5 / 10
Was this helpful?YesNo
23 Report
  • Anonymous
  • September 7, 2021

For Dietary Supplementation "I started taking CoQ10 because I heard it was important to take it if you were taking a statin. I started feeling very tired and had severe diarrhea lasting for hours. I don't know if it would do anything for my heart, liver, or my migraines because I can't tolerate it."

1 / 10
Was this helpful?YesNo
21 Report

Are you taking this medicine?

Your review helps others make informed decisions.
Write a review
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.