Dilantin and Visual impairment - a phase IV clinical study of FDA data

Summary:

Visual impairment is reported as a side effect among people who take Dilantin (phenytoin sodium), especially for people who are female, 60+ old, have been taking the drug for 1 - 6 months also take Keppra, and have Convulsion.

The phase IV clinical study analyzes which people have Visual impairment when taking Dilantin. It is created by eHealthMe based on reports of 19,857 people who have side effects when taking Dilantin from the FDA, and is updated regularly.

What is Dilantin?

Dilantin has active ingredients of phenytoin sodium. It is often used in epilepsy. eHealthMe is studying from 20,858 Dilantin users. Check the latest studies of Dilantin.

What is Visual impairment?

Visual impairment is found to be associated with 2,256 drugs and 2,336 conditions by eHealthMe. Check the latest studies of Visual impairment.



On Apr, 06, 2026

19,857 people reported to have side effects when taking Dilantin.
Among them, 106 people (0.53%) have Visual impairment.

Could Dilantin cause Visual impairment?

Among these 106 people:

How long have people been on Dilantin when they have Visual impairment? *

What is the gender of people who have Visual impairment when taking Dilantin? *

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What is the age of people who have Visual impairment when taking Dilantin? *

What are other drugs people take besides Dilantin? *

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What are other side effects people have besides Visual impairment? *

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What are the existing conditions these people have? *

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* Approximation only. Some reports may have incomplete information.

Do you take Dilantin and have Visual impairment?

- Check whether Visual impairment is associated with a drug or a condition
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Related studies:

Effectiveness of, long term effects of, and alternative drugs to Dilantin:

Visual impairment treatments and more:

How severe was Visual impairment and when was it recovered:

Expand to all the drugs that have ingredients of phenytoin sodium:

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 Dilantin:

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 Visual impairment:

Browse all the conditions that are associated with Visual impairment:

Related publications that referenced our studies


How the study uses the data?

The study uses data from the FDA. It is based on phenytoin sodium (the active ingredients of Dilantin) and Dilantin (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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