Ritalin and C-reactive protein increased - a phase IV clinical study of FDA data

Summary:

C-reactive protein increased is reported as a side effect among people who take Ritalin (methylphenidate hydrochloride), especially for people who are male, 30-39 old, have been taking the drug for < 1 month also take Adderall 10, and have Asthma.

The phase IV clinical study analyzes which people have C-reactive protein increased when taking Ritalin. It is created by eHealthMe based on reports of 26,179 people who have side effects when taking Ritalin from the FDA, and is updated regularly.

What is Ritalin?

Ritalin has active ingredients of methylphenidate hydrochloride. It is often used in attention deficit hyperactivity disorder. eHealthMe is studying from 29,427 Ritalin users. Check the latest studies of Ritalin.

What is C-reactive protein increased?

C-reactive protein increased is found to be associated with 1,568 drugs and 2,281 conditions by eHealthMe. Check the latest studies of C-reactive protein increased.

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 Sep, 01, 2026

26,179 people reported to have side effects when taking Ritalin.
Among them, 35 people (0.13%) have C-reactive protein increased.

Could Ritalin cause C-reactive protein increased?

Among these 35 people:

How long have people been on Ritalin when they have C-reactive protein increased? *

What is the gender of people who have C-reactive protein increased when taking Ritalin? *

female: 29.41 %
male: 70.59 %

What is the age of people who have C-reactive protein increased when taking Ritalin? *

What are other drugs people take besides Ritalin? *

What are other side effects people have besides C-reactive protein increased? *

Fever: 11 people, 31.43%
Red Blood Cell Sedimentation Rate Increased: 9 people, 25.71%
Oedema Peripheral (superficial swelling): 9 people, 25.71%
Nausea (feeling of having an urge to vomit): 9 people, 25.71%
Heart Rate Increased: 9 people, 25.71%
Pain In Extremity: 8 people, 22.86%
Dyspnea (difficult or laboured breathing): 8 people, 22.86%
Blood Creatine Phosphokinase Increased: 7 people, 20.00%
High Blood Pressure: 7 people, 20.00%
Platelet Count Increased: 7 people, 20.00%

What are the existing conditions these people have? *

Dyspnea (difficult or laboured breathing): 5 people, 14.29%
Bronchopulmonary Aspergillosis Allergic (allergic lung disorder caused by aspergillus fungi): 5 people, 14.29%
Bronchitis (inflammation of the mucous membrane in the bronchial tubes): 5 people, 14.29%
Asthma: 5 people, 14.29%
Simple Partial Seizures (seizures which affect only a small region of the brain): 4 people, 11.43%
Lung Infection: 4 people, 11.43%
High Blood Pressure: 3 people, 8.57%
Acne (skin problems that cause pimples): 2 people, 5.71%
Sinusitis (inflammation of sinus): 1 person, 2.86%
Pneumonia: 1 person, 2.86%

* Approximation only. Some reports may have incomplete information.

Do you take Ritalin and have C-reactive protein increased?

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Related studies:

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

Ritalin (29,427 reports)

Browse all side effects of Ritalin:

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 C-reactive protein increased:

C-reactive protein increased (1,568 drugs)

Browse all the conditions that are associated with C-reactive protein increased:

C-reactive protein increased (2,281 conditions)

Related publications that referenced our studies

How the study uses the data?

The study uses data from the FDA. It is based on methylphenidate hydrochloride (the active ingredients of Ritalin) and Ritalin (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.