Chantix and Vein disorder - a phase IV clinical study of FDA data

Summary:

Vein disorder is reported as a side effect among people who take Chantix (varenicline tartrate), especially for people who are female, 60+ old, have been taking the drug for 1 - 6 months also take Vitamins, and have Blood potassium decreased.

The phase IV clinical study analyzes which people have Vein disorder when taking Chantix. It is created by eHealthMe based on reports of 87,716 people who have side effects when taking Chantix from the FDA, and is updated regularly.

What is Chantix?

Chantix has active ingredients of varenicline tartrate. It is often used in quit smoking. eHealthMe is studying from 89,889 Chantix users. Check the latest studies of Chantix.

What is Vein disorder?

Vein disorder is found to be associated with 553 drugs and 611 conditions by eHealthMe. Check the latest studies of Vein disorder.

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, 29, 2026

87,716 people reported to have side effects when taking Chantix.
Among them, 14 people (0.02%) have Vein disorder.

Among these 14 people:

How long have people been on Chantix when they have Vein disorder? *

What is the gender of people who have Vein disorder when taking Chantix? *

female: 78.57 %
male: 21.43 %

What is the age of people who have Vein disorder when taking Chantix? *

What are other drugs people take besides Chantix? *

What are other side effects people have besides Vein disorder? *

Headache (pain in head): 3 people, 21.43%
Stress And Anxiety: 3 people, 21.43%
Weight Increased: 2 people, 14.29%
Stroke (sudden death of a portion of the brain cells due to a lack of oxygen): 2 people, 14.29%
Head Injury: 2 people, 14.29%
Itching: 2 people, 14.29%
Oedema Peripheral (superficial swelling): 2 people, 14.29%
Cardiac Failure Congestive: 1 person, 7.14%
Dry Mouth: 1 person, 7.14%
Hepatic Pain (pain in liver): 1 person, 7.14%

What are the existing conditions these people have? *

Spinal Fracture (fracture in one of vertebrae): 1 person, 7.14%
Sleep Disorder: 1 person, 7.14%
Primary Pulmonary Hypertension (primary high blood pressure that affects the arteries in the lungs and the right side of your heart): 1 person, 7.14%
Pain: 1 person, 7.14%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 1 person, 7.14%
Blood Potassium Decreased: 1 person, 7.14%

* Approximation only. Some reports may have incomplete information.

Do you take Chantix and have Vein disorder?

- Check whether Vein disorder 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 Chantix:

Chantix (89,889 reports)

Vein disorder treatments and more:

Vein disorder (6,390 reports)

Browse all side effects of Chantix:

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 Vein disorder:

Vein disorder (553 drugs)

Browse all the conditions that are associated with Vein disorder:

Vein disorder (611 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on varenicline tartrate (the active ingredients of Chantix) and Chantix (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.