Nourianz and Overdose - a phase IV clinical study of FDA data

Summary:

Overdose is reported as a side effect among people who take Nourianz (istradefylline), especially for people who are male, 60+ old, have been taking the drug for < 1 month also take Eliquis, and have Parkinson's disease.

The phase IV clinical study analyzes which people have Overdose when taking Nourianz. It is created by eHealthMe based on reports of 5,258 people who have side effects when taking Nourianz from the FDA, and is updated regularly.

What is Nourianz?

Nourianz has active ingredients of istradefylline. eHealthMe is studying from 5,260 Nourianz users. Check the latest studies of Nourianz.

What is Overdose?

Overdose is found to be associated with 2,212 drugs and 2,475 conditions by eHealthMe. Check the latest studies of Overdose.

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, 31, 2026

5,258 people reported to have side effects when taking Nourianz.
Among them, 11 people (0.21%) have Overdose.

Among these 11 people:

How long have people been on Nourianz when they have Overdose? *

What is the gender of people who have Overdose when taking Nourianz? *

female: 0.0 %
male: 100 %

What is the age of people who have Overdose when taking Nourianz? *

What are other drugs people take besides Nourianz? *

What are other side effects people have besides Overdose? *

Hallucinations (sensations that appear real but are created by your mind): 3 people, 27.27%
Confusional State: 3 people, 27.27%
Memory Loss: 2 people, 18.18%
Fall: 2 people, 18.18%
Sleep Disorder: 2 people, 18.18%
Headache (pain in head): 2 people, 18.18%
Hospitalisation: 2 people, 18.18%
Cardiac Failure Congestive: 2 people, 18.18%
Drug Ineffective: 2 people, 18.18%
Malaise (a feeling of general discomfort or uneasiness): 2 people, 18.18%

What are the existing conditions these people have? *

Parkinson's Disease: 10 people, 90.91%
Cardiac Failure Congestive: 1 person, 9.09%

* Approximation only. Some reports may have incomplete information.

Do you take Nourianz and have Overdose?

- Check whether Overdose 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 Nourianz:

Nourianz (5,260 reports)

Overdose treatments and more:

Overdose (229,245 reports)

Browse all side effects of Nourianz:

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 Overdose:

Overdose (2,212 drugs)

Browse all the conditions that are associated with Overdose:

Overdose (2,475 conditions)

How the study uses the data?

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