Methylcobalamin and Heart rate increased - a phase IV clinical study of FDA data

Summary:

Heart rate increased is reported as a side effect among people who take Methylcobalamin (vitamin b12), especially for people who are female, 60+ old, also take Enbrel, and have Rheumatoid arthritis.

The phase IV clinical study analyzes which people have Heart rate increased when taking Methylcobalamin. It is created by eHealthMe based on reports of 3,096 people who have side effects when taking Methylcobalamin from the FDA, and is updated regularly.

What is Methylcobalamin?

Methylcobalamin has active ingredients of vitamin b12. It is often used in vitamin b12 deficiency. eHealthMe is studying from 3,184 Methylcobalamin users. Check the latest studies of Methylcobalamin.

What is Heart rate increased?

Heart rate increased is found to be associated with 2,387 drugs and 3,212 conditions by eHealthMe. Check the latest studies of Heart rate increased.

On Jul, 13, 2026

3,096 people reported to have side effects when taking Methylcobalamin.
Among them, 25 people (0.81%) have Heart rate increased.

Could Methylcobalamin cause Heart rate increased?

Among these 25 people:

What is the gender of people who have Heart rate increased when taking Methylcobalamin? *

female: 76.47 %
male: 23.53 %

What is the age of people who have Heart rate increased when taking Methylcobalamin? *

What are other drugs people take besides Methylcobalamin? *

Enbrel: 14 people, 56.00%
Amlodipine: 13 people, 52.00%
Arava: 13 people, 52.00%
Benadryl: 13 people, 52.00%
Tylenol: 13 people, 52.00%
Acetaminophen: 12 people, 48.00%
Leflunomide: 9 people, 36.00%
Naproxen: 9 people, 36.00%
Prednisone: 9 people, 36.00%
Methylprednisolone Sodium Succinate: 9 people, 36.00%

What are other side effects people have besides Heart rate increased? *

Eye Infection: 13 people, 52.00%
Uveitis (inflammation of the uvea): 13 people, 52.00%
Urinary Tract Infection: 13 people, 52.00%
Blood Pressure Fluctuation: 13 people, 52.00%
Blood Pressure Systolic Abnormal: 12 people, 48.00%
Stress And Anxiety: 10 people, 40.00%
Blood Pressure Systolic Increased: 9 people, 36.00%
Dyspnea (difficult or laboured breathing): 6 people, 24.00%
Hypotension (abnormally low blood pressure): 6 people, 24.00%
Blood Pressure Diastolic Abnormal: 5 people, 20.00%

What are the existing conditions these people have? *

Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 13 people, 52.00%
Ulcerative Colitis (inflammatory bowel disease (ibd). it causes swelling, ulcerations, and loss of function of the large intestine): 3 people, 12.00%
Pemphigoid (tense blisters on the skin): 3 people, 12.00%
Hypogammaglobulinaemia (an abnormally low concentration of gamma globulin in the blood and increased risk of infection): 3 people, 12.00%
Abdominal Discomfort: 3 people, 12.00%
Pain: 1 person, 4.00%
Osteoarthritis (a joint disease caused by cartilage loss in a joint): 1 person, 4.00%
Oesophageal Pain: 1 person, 4.00%
Oesophageal Disorder (disease of oesophagus): 1 person, 4.00%
Insulinoma (tumour of the pancreas that is derived from beta cells and secretes insulin): 1 person, 4.00%

* Approximation only. Some reports may have incomplete information.

Do you take Methylcobalamin and have Heart rate increased?

- Check whether Heart rate increased 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 Methylcobalamin:

Methylcobalamin (3,184 reports)

Browse all side effects of Methylcobalamin:

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 Heart rate increased:

Heart rate increased (2,387 drugs)

Browse all the conditions that are associated with Heart rate increased:

Heart rate increased (3,212 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on vitamin b12 (the active ingredients of Methylcobalamin) and Methylcobalamin (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.