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Vitamin c and Atrioventricular block complete - a phase IV clinical study of FDA data

Summary:

Atrioventricular block complete is reported as a side effect among people who take Vitamin c (l-ascorbic acid), especially for people who are female, 60+ old, have been taking the drug for 10+ years also take Vitamin D3, and have High blood pressure.

The phase IV clinical study analyzes which people have Atrioventricular block complete when taking Vitamin c. It is created by eHealthMe based on reports of 89,802 people who have side effects when taking Vitamin c from the FDA, and is updated regularly.

What is Vitamin c?

Vitamin c has active ingredients of l-ascorbic acid. It is often used in immune response. eHealthMe is studying from 92,472 Vitamin c users. Check the latest studies of Vitamin c.

What is Atrioventricular block complete?

Atrioventricular block complete (heart block complete) is found to be associated with 670 drugs and 951 conditions by eHealthMe. Check the latest studies of Atrioventricular block complete.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Aug, 28, 2026

89,802 people reported to have side effects when taking Vitamin c.
Among them, 24 people (0.03%) have Atrioventricular block complete.

Could Vitamin c cause Atrioventricular block complete?

Among these 24 people:

How long have people been on Vitamin c when they have Atrioventricular block complete? *

  • < 1 month: 40 %
  • 1 - 6 months: 0.0 %
  • 6 - 12 months: 0.0 %
  • 1 - 2 years: 0.0 %
  • 2 - 5 years: 0.0 %
  • 5 - 10 years: 0.0 %
  • 10+ years: 60 %

What is the gender of people who have Atrioventricular block complete when taking Vitamin c? *

  • female: 52.38 %
  • male: 47.62 %

What is the age of people who have Atrioventricular block complete when taking Vitamin c? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 0.0 %
  • 30-39: 0.0 %
  • 40-49: 0.0 %
  • 50-59: 10 %
  • 60+: 90 %

What are other drugs people take besides Vitamin c? *

  1. Vitamin D3: 12 people, 50.00%
  2. Tylenol: 6 people, 25.00%
  3. Calcium: 5 people, 20.83%
  4. Zyrtec: 4 people, 16.67%
  5. Fish Oil: 4 people, 16.67%
  6. Synthroid: 3 people, 12.50%
  7. Melatonin: 3 people, 12.50%
  8. Diovan: 3 people, 12.50%
  9. Colace: 3 people, 12.50%
  10. Ondansetron: 3 people, 12.50%

What are other side effects people have besides Atrioventricular block complete? *

  1. Bradycardia (abnormally slow heart action): 5 people, 20.83%
  2. 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): 4 people, 16.67%
  3. Fainting (loss of consciousness and postural tone): 4 people, 16.67%
  4. Weakness: 4 people, 16.67%
  5. Dyspnea (difficult or laboured breathing): 4 people, 16.67%
  6. Oedema Peripheral (superficial swelling): 3 people, 12.50%
  7. Ill-Defined Disorder: 3 people, 12.50%
  8. Myasthenia Gravis (a chronic condition that causes muscles to tire and weaken easily): 3 people, 12.50%
  9. Presyncope: 3 people, 12.50%
  10. Bleeding Disorders: 3 people, 12.50%

What are the existing conditions these people have? *

  1. Pain: 4 people, 16.67%
  2. High Blood Pressure: 4 people, 16.67%
  3. Polycythaemia Vera (blood disorder in which the bone marrow makes too many red blood cells): 3 people, 12.50%
  4. Primary Myelofibrosis (primary disorder of the bone marrow): 3 people, 12.50%
  5. Renal Cell Carcinoma (a kidney cancer): 3 people, 12.50%
  6. Multiple Myeloma (cancer of the plasma cells): 2 people, 8.33%
  7. Nausea (feeling of having an urge to vomit): 2 people, 8.33%
  8. Cardiac Failure Congestive: 2 people, 8.33%
  9. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 2 people, 8.33%
  10. Respiratory Acidosis (respiratory failure or ventilatory failure, causes the ph of blood and other bodily fluids to decrease): 2 people, 8.33%

* Approximation only. Some reports may have incomplete information.

Do you take Vitamin c and have Atrioventricular block complete?

- Check whether Atrioventricular block complete is associated with a drug or a condition
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously

Related studies:

Effectiveness of, long term effects of, and alternative drugs to Vitamin c:

Atrioventricular block complete treatments and more:

How severe was Atrioventricular block complete and when was it recovered:

Expand to all the drugs that have ingredients of l-ascorbic acid:

Sub-studies by gender and age:

Female: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Male: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Browse all side effects of Vitamin c:

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 Atrioventricular block complete:

Browse all the conditions that are associated with Atrioventricular block complete:

Related publications that referenced our studies

How the study uses the data?

The study uses data from the FDA. It is based on l-ascorbic acid (the active ingredients of Vitamin c) and Vitamin c (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.

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