Vitamin k1 and Abdominal pain upper - a phase IV clinical study of FDA data

Summary:

Abdominal pain upper is reported as a side effect among people who take Vitamin k1 (phytonadione), especially for people who are male, 60+ old, have been taking the drug for 1 - 2 years also take Phytonadione, and have Dyspnea.

The phase IV clinical study analyzes which people have Abdominal pain upper when taking Vitamin k1. It is created by eHealthMe based on reports of 939 people who have side effects when taking Vitamin k1 from the FDA, and is updated regularly.

What is Vitamin k1?

Vitamin k1 has active ingredients of phytonadione. eHealthMe is studying from 964 Vitamin k1 users. Check the latest studies of Vitamin k1.

What is Abdominal pain upper?

Abdominal pain upper is found to be associated with 2,962 drugs and 4,497 conditions by eHealthMe. Check the latest studies of Abdominal pain upper.

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, 21, 2026

939 people reported to have side effects when taking Vitamin k1.
Among them, 29 people (3.09%) have Abdominal pain upper.

Could Vitamin k1 cause Abdominal pain upper?

Among these 29 people:

How long have people been on Vitamin k1 when they have Abdominal pain upper? *

What is the gender of people who have Abdominal pain upper when taking Vitamin k1? *

female: 44.83 %
male: 55.17 %

What is the age of people who have Abdominal pain upper when taking Vitamin k1? *

What are other drugs people take besides Vitamin k1? *

What are other side effects people have besides Abdominal pain upper? *

Headache (pain in head): 22 people, 75.86%
Pain: 20 people, 68.97%
Pneumonia: 18 people, 62.07%
Upper Respiratory Tract Infection: 18 people, 62.07%
Lower Respiratory Tract Infection: 18 people, 62.07%
Tremor (trembling or shaking movements in one or more parts of your body): 17 people, 58.62%
Fatigue (feeling of tiredness): 17 people, 58.62%
Nausea (feeling of having an urge to vomit): 17 people, 58.62%
Constipation: 16 people, 55.17%
High Blood Cholesterol: 16 people, 55.17%

What are the existing conditions these people have? *

Sleep Disorder: 15 people, 51.72%
Chronic Obstructive Pulmonary Disease (a progressive disease that makes it hard to breathe): 15 people, 51.72%
Dyspnea (difficult or laboured breathing): 15 people, 51.72%
Bacterial Infection: 12 people, 41.38%
Constipation: 11 people, 37.93%
Immunodeficiency Common Variable: 7 people, 24.14%
Swelling: 7 people, 24.14%
Iron Deficiency: 6 people, 20.69%
Blood Phosphorus Increased: 6 people, 20.69%
Blood Uric Acid Increased: 6 people, 20.69%

* Approximation only. Some reports may have incomplete information.

Do you take Vitamin k1 and have Abdominal pain upper?

- Check whether Abdominal pain upper 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 k1:

Vitamin k1 (964 reports)

Browse all side effects of Vitamin k1:

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 Abdominal pain upper:

Abdominal pain upper (2,962 drugs)

Browse all the conditions that are associated with Abdominal pain upper:

Abdominal pain upper (4,497 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on phytonadione (the active ingredients of Vitamin k1) and Vitamin k1 (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.