Ritalin and Opdivo drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Ritalin (methylphenidate hydrochloride) and Opdivo (nivolumab). Common drug interactions include death among females and fatigue among males.

The phase IV clinical study analyzes what interactions people have when they take Ritalin and Opdivo. It is created by eHealthMe based on reports of 33 people who take the same drugs 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 Opdivo?

Opdivo has active ingredients of nivolumab. eHealthMe is studying from 56,331 Opdivo users. Check the latest studies of Opdivo.



On Jul, 18, 2026

33 people who take Ritalin and Opdivo together, and have interactions are studied.

Ritalin and Opdivo drug interactions.

What are the common drug interactions of Ritalin and Opdivo, by gender? *:

female:

  1. Death
  2. Diarrhoea
  3. Fatigue (feeling of tiredness)
  4. Nausea (feeling of having an urge to vomit)
  5. Abdominal pain
  6. Arthralgia (joint pain)
  7. Blood sodium decreased
  8. Dyspnoea (difficult or laboured respiration)
  9. Joint swelling
  10. Muscle disorder (muscle disease)

male:

  1. Fatigue (feeling of tiredness)
  2. Blood pressure fluctuation
  3. Vomiting
  4. Asthenia (weakness)
  5. Constipation
  6. Muscular weakness (muscle weakness)
  7. Abdominal distension
  8. Adrenal disorder
  9. Chest discomfort
  10. Dry mouth

What are the common drug interactions of Ritalin and Opdivo, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

  1. Malignant neoplasm progression (cancer tumour came back)
  2. Rash
  3. Tooth infection

50-59:

  1. Death

60+:

  1. Diarrhoea
  2. Blood pressure fluctuation
  3. Dysphonia (speech disorder attributable to a disorder of phonation)
  4. Exostosis (formation of new bone on the surface of a bone)
  5. Glossodynia (a burning or painful sensation in the tongue)
  6. Hypogeusia (reduced ability to taste things (to taste sweet, sour, bitter, or salty substances))
  7. Nausea (feeling of having an urge to vomit)
  8. Oral pain
  9. Pulmonary embolism (blockage of the main artery of the lung)
  10. Rash

What are the existing conditions these people have? *

  1. Renal Cell Carcinoma Stage Iv (stage iv renal cell cancer have cancer that has spread to other organs, such as the lungs, liver, bones, or brain, and may have spread to lymph nodes): 5 people, 15.15%
  2. Metastatic Malignant Melanoma (spreadable cancer tumour of melanine): 4 people, 12.12%
  3. Glioblastoma (most common and most aggressive malignant primary brain tumour in humans): 4 people, 12.12%
  4. Retroperitoneal Cancer (cancer between the peritoneum and the posterior abdominal wall): 2 people, 6.06%
  5. Pancreatic Carcinoma (pancreatic cancer): 2 people, 6.06%
  6. Pain: 2 people, 6.06%
  7. Nausea (feeling of having an urge to vomit): 2 people, 6.06%
  8. Lung Neoplasm Malignant (cancer tumour of lung): 2 people, 6.06%
  9. Lung Cancer Metastatic (lung cancer spreads to other parts): 2 people, 6.06%

* Approximation only. Some reports may have incomplete information.

Do you take Ritalin and Opdivo?

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Related studies:

Effectiveness of, side effects of, and alternative drugs to the 2 drugs:

Browse all drug interactions of Ritalin and Opdivo:

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

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 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 side effects of Opdivo:

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 interactions between Ritalin and drugs from A to Z:

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 interactions between Opdivo and drugs from A to Z:

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

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 and nivolumab (the active ingredients of Ritalin and Opdivo, respectively), and Ritalin and Opdivo (the brand names). 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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