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CoQ10 for Dietary Supplementation User Reviews

CoQ10 has an average rating of 5.7 out of 10 from a total of 32 reviews for the treatment of Dietary Supplementation. 50% of reviewers reported a positive experience, while 44% reported a negative experience.

CoQ10 rating summary

5.7/10 average rating

32 ratings from 34 user reviews.

Compare all 295 medications used in the treatment of Dietary Supplementation.

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Reviews for CoQ10

  • Cookoo
  • March 30, 2020

"I am a heart patient since 5 years and implanted pacemaker since 1 year. I decided to try coenzyme q10 for heart health and immunity etc.. I have normal bp 140/70 and sugar on control up to 150 units My doctor said it is a waste since it does nothing. Good reviews are posted by their own people or promoters. I took it for 5 days. Believe me was driven to the ground in the 4th day. My BP went down to 90/60 and my sugar came down to 90. I was dizzy fainting and all sorts of breathing and fatigue cold sweats. My heart was stopping and skipping etc... I threw the bottle out I in my thrash bin. and I'm back to normal now. Wonder why it is not launched in pharmacies if it was so good. Guys don't get deceived by the reviews and posts. Don't ever take coq10. How can these money greedy donkeys introduce something that can destroy you. Please pass it on to all you know, and if possible to WHO and other medical control facilities. Thanks."

1 / 10
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102 Report
  • RPK
  • Taken for less than 1 month
  • October 4, 2019

"The first day I took this I experienced breathing difficulty and light headedness, and somewhat dizzy. I did not realize it was the supplement causing it. I saw my doctor and they could find nothing wrong. Day two same thing shortly after taking. That's when I researched the product here and discovered the possible side effects, of 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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88 Report
  • A...
  • May 5, 2020

"I started taking CoQ10 after reading about studies that showed it helps reduce migraines. I've had moderate/severe migraines for years now, sometimes every day, less frequently in winter months. I started taking coq10 in winter so I didn't realize the difference until I ran out. It's hot where I live now, about a week of not taking it my migraines got bad again. I wasn't having them when spring came, then a week after not taking it with no other changes I suddenly was, so I think it's safe to say the CoQ10 works for me. It seems to take longer to start helping than it does to stop, it slowly got better over time without me noticing the first time, and it took a few weeks to reduce them again. I take 200mg a day twice a day, but started at 200mg once a day to be safe. I will say that this should be taken with caution after some research on brands, the FDA doesn't regulate them and each brand can perform differently. Hope this helps someone."

10 / 10
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68 Report
  • Mamaw
  • Taken for less than 1 month
  • May 6, 2021

"I started taking CoQ10 without any research. After a few days of y'all 100mg, I was ill; diarrhea, cramps, vomiting for over 25 hours straight. Then dizziness & weakness now it is the 3 rd day. Doctor and I thought food poisoning because of me eating at a buffet. But it just dawned on me to read up on this supplement. I have kidney disease and take thyroid medication. Now, I just want to know how long before I feel better and the CoQ10 get out of my system?"

1 / 10
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52 Report
  • Mario
  • Taken for less than 1 month
  • April 22, 2020

"I practice cycling on a regular basis (200 miles a week) and started taking CQ10 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 CQ10 is causing me. I will stop taking it and will come back to post again."

1 / 10
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58 Report

Are you taking this medicine?

  • Richard
  • October 20, 2020

"Greetings I've read a bit about CO Q10 strengthening the heart, I have just begun, three weeks, taking 300mg to 500mg per day ~ Well, it seems to be helping, I'm having, so far, no tachycardia ( heart beat up to 170 beats per min) and no great fluctuation of heart rate 37 to 90 bpm ~ I've also been taking magnesium 400mg or more per day ~ I've read of hypomagnesemia that has to do with the electrical firing of the heart We'll see, I've been seeing a cardiologist he is hinting at a pacemaker ~ which I would not like at all ~ We'll see, my heart seem to be behaving its self for the last three weeks now I have gone into a clinic and had two IVs of magnesium as well I'm 82 ~ I have been a profession athlete, I am now way out of shape but have begun to correct that Good luck and God be both you and I"

9 / 10
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50 Report
  • Liz
  • Taken for less than 1 month
  • July 10, 2019

"I started taking CoQ10 since my gastroenterologist recommended it. I started taking it after I did my research and my vision is better, little to no migraines, muscles don't ache as much, has helped my extreme fatigue. I also have water retention and struggle with high glucose it has helped both issues. I'm taking 100mg now but going to up the mg to 200mg."

10 / 10
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55 Report
  • Ruthie
  • Taken for 6 months to 1 year
  • December 23, 2018

"I was experiencing muscle weakness badly and my Cardiac Doctor told me to take this within 72 hours all pain had stop, I highly recommend Coq10 with ubiquinol, because I take statins my Doctor said I needed Coq10"

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54 Report
  • TeeCee
  • Taken for less than 1 month
  • October 19, 2022

"I have had chronic fatigue syndrome for 30 years and have read many times over the years that some people are helped with their energy level by taking CoQ10. However, I knew about the possibility of it lowering blood pressure and since mine is already low, I didn't try it. Recently I decided I would try Ubiquinol which is the active form of CoQ10. Although 200 mg daily was recommended, I am very sensitive to any meds so I started with 100 mg daily. Within 3 days, I did think my energy was a bit better but I also developed a raised, itchy rash on my waist. Not thinking it would be from the Ubiquinol, I continued taking it for another 10 days. The rash spread and I then looked up possible side effects of Ubiquinol. Bingo - rash is listed. I stopped taking it and hope that the rash goes away soon."

1 / 10
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21 Report
  • MelBoy
  • Taken for less than 1 month
  • June 1, 2019

"So far, this CoQ10 has really worked in preventing my horrible migraines. In combination of taking it with multi B vitamin, magnesium, and butterbur, I have gone from having 20 migraines to 3 or less a month- depends on the weather. I was skeptical, but the combination really works and doctor recommended. Just try it."

8 / 10
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46 Report
  • Calam...
  • Taken for less than 1 month
  • June 3, 2023

"COQ10 was recommended by a holistic health doctor who told me to take 200 mg. I am 69 years old and have always been sensitive to meds and some supplements so I started with 50 mg of Blue Bonnet Ubiquinol. It seemed to give me some energy the first two days and lowered my blood pressure the first day (a good benefit) so I upped the dose to 100 mg. I then started getting a restless feeling and some anxiety. This is the second day on 100 mg and it put me on the couch all day. My heart rate was high after I took it, got bad anxiety and felt weak and fatigued. According to the Mayo Clinic website these can all be side effects so I will discontinue this however be forewarned that I read the half life on this is 33 hours meaning that in 33 hours half the supplement is still in your body and it can take up to 5 days to clear out."

1 / 10
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14 Report
  • changed
  • Taken for 10 years or more
  • March 18, 2023

"I had taken this religiously 10 years ago at fairly high doses. It really gave ne energy. Older now having developed alot 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
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16 Report
  • Jase
  • Taken for less than 1 month
  • January 11, 2023

"This supplement made me very lightheaded and my legs weak. I took 1 tab if 100mg in 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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17 Report
  • Marie
  • Taken for less than 1 month
  • March 10, 2022

"I purchased HEB's Co q-10 100mg soft gels. I noticed I was feeling jittery and nervous and was not able to sleep most of the night. At first I didn't think it was the CoQ 10 that was making me feel that way. The next day I took it again just one pill 100mg and I happen to have a doctor's appointment on the same day where they found my blood pressure was 148/76. I've never had blood pressure that high in fact I usually run a low blood pressure of around 100 / 66 or so. When I went home I realized it must have been the CoQ10 after looking up in Google, some side effects other people were having were similar to mine. I stopped taking it and the next day my blood pressure was back to normal. In the meantime my doctor wants me to check my blood pressure twice a day for a whole month and see her again to see if I am developing hypertension."

1 / 10
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24 Report
  • rjoyd
  • Taken for less than 1 month
  • April 18, 2017

"I took this supplement awhile back with hope that it would help me with my migraines, I would have them for weeks at a time. So I took 200 mg everyday, I don't recall if i took it with or without food, but definitely took it during the day for at least a month. By the time I met with a neurologist my migraines were almost gone. He told me to stop taking it as he didn't know enough about, so I did, but nothing has worked so well since, so now I'm going back on. I believe that studies have been updated well enough. :-)"

10 / 10
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55 Report
  • Susan
  • Taken for less than 1 month
  • November 12, 2021

"After doing some reading I decided on my own to try ubiquinol since I am on a statin. My own cardiologist does not feel there’s any merit in this supplement . I took one name brand 100 mg soft gel capsule the first morning. The next morning I woke up with nausea and elevated blood pressure. I vomited numerous times that morning and the nausea and vomiting continued later into the evening. Not knowing if this was caused by the ubiquinol, I later discovered on the internet that these side effects have been the experience of others taking this supplement. Needless to say, I won’t be trying this again any time soon."

1 / 10
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24 Report
  • Woodbae
  • Taken for less than 1 month
  • July 7, 2021

"Bought a 30mg dose, the smallest I could find They say to try the smallest dose if you are starting something new. I took mine after a heavy breakfast which usually makes me sleepy. After just 10 minutes I felt my heart rate speed up, like a panic attack was coming, I had a little bit of difficulty breathing as if I was catching my breath from a quick run. I thought it worked like a vitamin, not like an adrenaline injection! Good thing I started with the lowest dose. Scary experience, not sure if I wanna take another dose (this was recommended by my doctor for better sperm quality) Stuff works, for sure but safety? I don't know man I'm giving an overall 5/10"

5 / 10
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22 Report
  • Kirkl...
  • Taken for less than 1 month
  • February 8, 2022

"I tried it once because my daughter highly recommend 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 feel like passing out so I checked my sugar level and it went down to 59 which I 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."

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18 Report
  • Anonymous
  • September 7, 2021

"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
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20 Report
  • Qunol
  • Taken for 6 months to 1 year
  • September 6, 2022

"I used Qunol for a year then I switched to a cheaper brand for 10 days. I was very sick and could not understand what was wrong with me. The only thing I changed was the brand of Co-Q10. I immediately went back to the Qunol and will never change again."

10 / 10
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14 Report
  • Sheila
  • Taken for less than 1 month
  • June 14, 2022

"I was prescribed this for a rare gene mutation, RYR1. Anyway, I began taking it and noticed I had very, very severe chest pains. I wanted to go to the hospital. I took the supplement again at night as directed and the chest pain woke me up, then it was hurting all the next day. The only thing I could think of was me taking this supplement, so I stopped. It took a day and a half for the chest pain to go away but it did. Been off this for a week and feel better. I don't know why it was causing such bad chest pain, but this was an awful experience. I threw it away, never again, this stuff is useless."

1 / 10
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14 Report
  • Wise
  • Taken for 6 months to 1 year
  • May 30, 2022

"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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14 Report
  • Gwen
  • Taken for 6 months to 1 year
  • April 28, 2022

"After taking CoQ10, to cleanse impurities from body, I noticed I went hours without wanting to smoke and wasn't even trying to quit. Unlike chantix, no behavioral changes occurred. Highly recommend it to quit smoking"

10 / 10
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14 Report
  • May...
  • Taken for less than 1 month
  • March 10, 2023

"I tried Qunol Ultra CoQ10 100 mg softgels from Costco and had a fairly severe reaction. It triggered (what appeared to be) psoriasis/rash that appeared on my face, arms, and legs. It moved toward my eyebrows, into my eyelids, and beyond (which worried me the most). The Costco food demonstrator that had originally convinced me to make the purchase was agitated when I came back weeks later, telling her about the reaction (I believe she told me that she worked for the company itself but I may be wrong about that). She insisted that any (negative) reaction is impossible. I allowed myself to be convinced to buy the CoQ10 because I was told that it will enhance the supplements I was already taking...and maybe that's true? I mean, I was taking Krill, Fish Oil, multivitamins, etc. If CoQ10 actually enhances supplements, maybe that in itself can cause an adverse reaction. Has anyone else experienced this?"

1 / 10
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9 Report
  • lorir...
  • Taken for 10 years or more
  • May 15, 2020

"I'm taking CoQ10 for metabolic support, prevent migraines and heart disease. Doing well helping reduce debilitating migraines; had to reduce dose from 400 to 200 after a series of other medical issues to manage blood pressure... It just doesn't take as much as it used to for my body to achieve the optimal effect for my heart health."

10 / 10
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20 Report

Reviews may be edited to correct grammar/spelling or to remove inappropriate language and content. Reviews that appear to be created by parties with a vested interest are not published. This information is not intended to endorse any particular medication. While these reviews may be helpful, they are not a substitute for the expertise, knowledge, and judgement of healthcare professionals.