Phenytoin and Platelet count increased - a phase IV clinical study of FDA data

Summary:

Platelet count increased is reported as a side effect among people who take Phenytoin (phenytoin), especially for people who are male, 60+ old, also take Tegretol, and have Partial seizures with secondary generalisation.

The phase IV clinical study analyzes which people have Platelet count increased when taking Phenytoin. It is created by eHealthMe based on reports of 15,464 people who have side effects when taking Phenytoin from the FDA, and is updated regularly.

What is Phenytoin?

Phenytoin has active ingredients of phenytoin. It is often used in epilepsy. eHealthMe is studying from 15,753 Phenytoin users. Check the latest studies of Phenytoin.

What is Platelet count increased?

Platelet count increased is found to be associated with 961 drugs and 1,190 conditions by eHealthMe. Check the latest studies of Platelet count increased.

On Jul, 09, 2026

15,464 people reported to have side effects when taking Phenytoin.
Among them, 13 people (0.08%) have Platelet count increased.

Could Phenytoin cause Platelet count increased?

Among these 13 people:

What is the gender of people who have Platelet count increased when taking Phenytoin? *

female: 46.15 %
male: 53.85 %

What is the age of people who have Platelet count increased when taking Phenytoin? *

What are other drugs people take besides Phenytoin? *

What are other side effects people have besides Platelet count increased? *

White Blood Cell Count Increased: 7 people, 53.85%
White Blood Cell Count Decreased: 3 people, 23.08%
Anorexia (eating disorder characterized by immoderate food restriction and irrational fear of gaining weight): 3 people, 23.08%
Convulsion (muscles contract and relax rapidly and repeatedly, resulting in an uncontrolled shaking of the body): 3 people, 23.08%
Fever: 3 people, 23.08%
Haemoglobin Decreased: 3 people, 23.08%
High Blood Pressure: 3 people, 23.08%
Subdural Haematoma (blood collects between the skull and the surface of the brain): 2 people, 15.38%
Liver Disorder (liver diseases): 2 people, 15.38%
Injection Site Ulcer: 2 people, 15.38%

What are the existing conditions these people have? *

Urinary Tract Infection: 2 people, 15.38%
Simple Partial Seizures (seizures which affect only a small region of the brain): 2 people, 15.38%
Schizophrenia (a mental disorder characterized by a breakdown of thought processes): 2 people, 15.38%
Partial Seizures With Secondary Generalisation (partial seizure may spread within the brain, a process known as secondary generalization): 2 people, 15.38%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 1 person, 7.69%
Meningioma (a diverse set of tumours arising from the meninges): 1 person, 7.69%
Ill-Defined Disorder: 1 person, 7.69%
Cerebral Infarction (less blood supply to brain resulting tissue damage): 1 person, 7.69%
Bipolar Disorder (mood disorder): 1 person, 7.69%

* Approximation only. Some reports may have incomplete information.

Do you take Phenytoin and have Platelet count increased?

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Related studies:

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

Phenytoin (15,753 reports)

Browse all side effects of Phenytoin:

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 Platelet count increased:

Platelet count increased (961 drugs)

Browse all the conditions that are associated with Platelet count increased:

Platelet count increased (1,190 conditions)

Related publications that referenced our studies

Wandalkar P, Daswani BR, Pandit PT, Ghongane BB, "A case of Phenytoin toxicity", INTERNATIONAL JOURNAL OF ADVANCES IN PHARMACY, BIOLOGY AND CHEMISTRY, 2014 Jan .
Wandalkar P, Daswani BR, Pandit PT, Ghongane BB, "A case of Phenytoin toxicity", INTERNATIONAL JOURNAL OF ADVANCES IN PHARMACY, BIOLOGY AND CHEMISTRY, 2014 Jan .

How the study uses the data?

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