Multivitamin and Astigmatism - a phase IV clinical study of FDA data

Summary:

Astigmatism is reported as a side effect among people who take Multivitamin (ascorbic acid; biotin; cyanocobalamin; dexpanthenol; ergocalciferol; folic acid; niacinamide; pyridoxine hydrochloride; riboflavin phosphate sodium; thiamine hydrochloride; vitamin a; vitamin e), especially for people who are female, 60+ old, also take Zometa, and have Multiple myeloma.

The phase IV clinical study analyzes which people have Astigmatism when taking Multivitamin. It is created by eHealthMe based on reports of 79,185 people who have side effects when taking Multivitamin from the FDA, and is updated regularly.

What is Multivitamin?

Multivitamin has active ingredients of ascorbic acid; biotin; cyanocobalamin; dexpanthenol; ergocalciferol; folic acid; niacinamide; pyridoxine hydrochloride; riboflavin phosphate sodium; thiamine hydrochloride; vitamin a; vitamin e. It is often used in vitamin supplementation. eHealthMe is studying from 83,597 Multivitamin users. Check the latest studies of Multivitamin.

What is Astigmatism?

Astigmatism (refractive error of the eye in which parallel rays of light from an external source do not converge on a single focal point on the retina) is found to be associated with 368 drugs and 421 conditions by eHealthMe. Check the latest studies of Astigmatism.

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, 14, 2026

79,185 people reported to have side effects when taking Multivitamin.
Among them, 20 people (0.03%) have Astigmatism.

Among these 20 people:

What is the gender of people who have Astigmatism when taking Multivitamin? *

female: 60 %
male: 40 %

What is the age of people who have Astigmatism when taking Multivitamin? *

What are other drugs people take besides Multivitamin? *

What are other side effects people have besides Astigmatism? *

Pain: 13 people, 65.00%
Joint Pain: 12 people, 60.00%
Stomatitis (inflammation of mucous membrane of mouth): 11 people, 55.00%
Cataract (clouding of the lens inside the eye): 10 people, 50.00%
Osteomyelitis (infection of bone): 9 people, 45.00%
Stress And Anxiety: 9 people, 45.00%
Abdominal Pain: 8 people, 40.00%
Haematocrit Decreased: 8 people, 40.00%
Blood Glucose Increased: 8 people, 40.00%
Diverticulum (out pouching of a hollow (or a fluid-filled) structure in the body): 8 people, 40.00%

What are the existing conditions these people have? *

Multiple Myeloma (cancer of the plasma cells): 4 people, 20.00%
Eczema (patches of skin become rough and inflamed, with itching and bleeding blisters): 3 people, 15.00%
Osteoporosis (bones weak and more likely to break): 2 people, 10.00%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 2 people, 10.00%
Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 1 person, 5.00%
Pain: 1 person, 5.00%
Migraine (headache): 1 person, 5.00%
Mental Disorder (a psychological term for a mental or behavioural pattern or anomaly that causes distress or disability): 1 person, 5.00%
Insomnia (sleeplessness): 1 person, 5.00%
Infantile Spasms: 1 person, 5.00%

* Approximation only. Some reports may have incomplete information.

Do you take Multivitamin and have Astigmatism?

- Check whether Astigmatism 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 Multivitamin:

Multivitamin (83,597 reports)

Astigmatism treatments and more:

Astigmatism (2,086 reports)

How severe was Astigmatism and when was it recovered:

Astigmatism in Multivitamin

Expand to all the drugs that have ingredients of ascorbic acid; biotin; cyanocobalamin; dexpanthenol; ergocalciferol; folic acid; niacinamide; pyridoxine hydrochloride; riboflavin phosphate sodium; thiamine hydrochloride; vitamin a; vitamin e:

Astigmatism and drugs with ingredients of ascorbic acid; biotin; cyanocobalamin; dexpanthenol; ergocalciferol; folic acid; niacinamide; pyridoxine hydrochloride; riboflavin phosphate sodium; thiamine hydrochloride; vitamin a; vitamin e (77 reports)

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 Multivitamin:

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 Astigmatism:

Astigmatism (368 drugs)

Browse all the conditions that are associated with Astigmatism:

Astigmatism (421 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on ascorbic acid; biotin; cyanocobalamin; dexpanthenol; ergocalciferol; folic acid; niacinamide; pyridoxine hydrochloride; riboflavin phosphate sodium; thiamine hydrochloride; vitamin a; vitamin e (the active ingredients of Multivitamin) and Multivitamin (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.