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CoQ10 and Lightheadedness: What Users Say

Lightheadedness: mentioned by 4 users (11.1%)

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 4 reviews tagged with "lightheadedness". Clear filters to view all 36 reviews.
Commonly mentioned side effects
  • RPK...
  • Taken for less than 1 month
  • October 4, 2019

For Dietary Supplementation "The first day I took this, I experienced breathing difficulty, light-headedness, and felt somewhat dizzy. I did not realize it was the supplement causing it. I saw my doctor, and they could find nothing wrong. Day two, the same thing happened shortly after taking it. That's when I researched the product here and discovered the possible side effects, which affected me. My blood pressure was elevated rather than low. I feel fine when not taking this product."

3 / 10
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97 Report
  • Jas...
  • Taken for less than 1 month
  • January 11, 2023

For Dietary Supplementation "This supplement made me very lightheaded and my legs weak. I took 1 tab of 100 mg in the morning, and by afternoon these side effects happened. Could not find anything online where anyone else had this happen. Will not take it again."

1 / 10
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24 Report
  • Kir...
  • Taken for less than 1 month
  • February 8, 2022

For Dietary Supplementation "I tried it once because my daughter highly recommended it. After a few minutes, I got 2 bouts of diarrhea, cold hands, and lightheadedness. I ignored the symptoms, and they went away. Then that night, I suddenly felt like passing out, so I checked my sugar level, and it went down to 59, which I had never experienced before with a full lunch. I am so devastated and weak, so I decided to stop the CoQ10. It is potentially bringing my sugar so low and making me pass out. I have to stop this vitamin. It is not working for me."

2 / 10
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19 Report
  • Wis...
  • Taken for 6 months to 1 year
  • May 30, 2022

For Dietary Supplementation "I started taking this to lower my blood pressure. It worked! It was so effective that I didn't need to combine it with my blood pressure medication. Taking both lowered it too much to where I felt dizzy and lightheaded, so I ditched the blood pressure meds. I've been rejuvenated ever since! My recommendation is to take it early in the morning."

10 / 10
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16 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.