Coq and Increased tendency to bruise - a phase IV clinical study of FDA data

Summary:

Increased tendency to bruise is reported as a side effect among people who take Coq (coenzyme q - 10), especially for people who are male, 60+ old, also take Vitamin D3, and have Atrial fibrillation/flutter.

The phase IV clinical study analyzes which people have Increased tendency to bruise when taking Coq. It is created by eHealthMe based on reports of 9,924 people who have side effects when taking Coq from the FDA, and is updated regularly.

What is Coq?

Coq has active ingredients of coenzyme q - 10. It is often used in high blood cholesterol. eHealthMe is studying from 11,465 Coq users. Check the latest studies of Coq.

What is Increased tendency to bruise?

Increased tendency to bruise (increased tendency to injure the underlying soft tissue or bone) is found to be associated with 770 drugs and 813 conditions by eHealthMe. Check the latest studies of Increased tendency to bruise.

On Jul, 08, 2026

9,924 people reported to have side effects when taking Coq.
Among them, 29 people (0.29%) have Increased tendency to bruise.

Could Coq cause Increased tendency to bruise?

Among these 29 people:

What is the gender of people who have Increased tendency to bruise when taking Coq? *

female: 42.86 %
male: 57.14 %

What is the age of people who have Increased tendency to bruise when taking Coq? *

What are other drugs people take besides Coq? *

What are other side effects people have besides Increased tendency to bruise? *

Nosebleed (bleeding from nose): 11 people, 37.93%
Fatigue (feeling of tiredness): 10 people, 34.48%
High Blood Pressure: 10 people, 34.48%
Cardiac Failure Congestive: 6 people, 20.69%
Head Injury: 6 people, 20.69%
Haematuria (presence of blood in urine): 6 people, 20.69%
Gastrointestinal Haemorrhage (bleeding gastrointestinal tract): 6 people, 20.69%
Insomnia (sleeplessness): 5 people, 17.24%
Weakness: 5 people, 17.24%
Basal Cell Carcinoma (a skin cancer, it rarely metastasizes or kills): 5 people, 17.24%

What are the existing conditions these people have? *

Atrial Fibrillation/flutter (atrial fibrillation and flutter are abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles): 7 people, 24.14%
Stroke (sudden death of a portion of the brain cells due to a lack of oxygen): 6 people, 20.69%
Chronic Lymphocytic Leukaemia (cancer in which the bone marrow makes too many lymphocytes (a type of white blood cell)): 5 people, 17.24%
Cardiac Failure Congestive: 5 people, 17.24%
Blood Pressure Abnormal: 3 people, 10.34%
Fungal Infection: 3 people, 10.34%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 3 people, 10.34%
Asthma: 3 people, 10.34%
Pulmonary Embolism (blockage of the main artery of the lung): 2 people, 6.90%
Blood Iron Abnormal: 2 people, 6.90%

* Approximation only. Some reports may have incomplete information.

Do you take Coq and have Increased tendency to bruise?

- Check whether Increased tendency to bruise is associated with a drug or a condition
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Related studies:

Effectiveness of, long term effects of, and alternative drugs to Coq:

Coq (11,465 reports)

Browse all side effects of Coq:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all the drugs that are associated with Increased tendency to bruise:

Increased tendency to bruise (770 drugs)

Browse all the conditions that are associated with Increased tendency to bruise:

Increased tendency to bruise (813 conditions)

Related publications that referenced our studies

Peel MM, Cooke M, Lewis-Peel HJ, Lea RA, Moyle W, "A randomized controlled trial of coenzyme Q 10 for fatigue in the late-onset sequelae of poliomyelitis", Complementary therapies in medicine, 2015 Dec .
Peel MM, Cooke M, Lewis-Peel HJ, Lea RA, Moyle W, "A randomized controlled trial of coenzyme Q 10 for fatigue in the late-onset sequelae of poliomyelitis", Complementary therapies in medicine, 2015 Dec .

How the study uses the data?

The study uses data from the FDA. It is based on coenzyme q - 10 (the active ingredients of Coq) and Coq (the brand name). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered. Dosage of drugs is not considered in the study.

How to use the study?

DO NOT STOP MEDICATIONS without first consulting your doctor. If there are any serious or long term adverse effects discovered in the study, discuss the study with your doctor to ensure that proper medication management will be in place if applicable.

Who is eHealthMe?

With medical big data and proven AI/ML algorithms, eHealthMe provides a platform for everyone to run phase IV clinical trials. We study millions of patients and 5,000 more each day. Results of our real-world drug study have been referenced on 800+ peer-reviewed medical publications, including The Lancet, Mayo Clinic Proceedings, and Nature. Our analysis results are available to researchers, health care professionals, patients (testimonials), and software developers (open API).

WARNING, DISCLAIMER, USE FOR PUBLICATION

WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on eHealthMe.com is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only. Our phase IV clinical studies alone cannot establish cause-effect relationship. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.