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Risperdal and Gastric bypass - a phase IV clinical study of FDA data

Summary:

Gastric bypass is reported as a side effect among people who take Risperdal (risperidone), especially for people who are female, 20-29 old, have been taking the drug for 1 - 6 months also take Seroquel, and have Depression.

The phase IV clinical study analyzes which people have Gastric bypass when taking Risperdal. It is created by eHealthMe based on reports of 126,253 people who have side effects when taking Risperdal from the FDA, and is updated regularly.

What is Risperdal?

Risperdal has active ingredients of risperidone. It is often used in bipolar disorder. eHealthMe is studying from 127,729 Risperdal users. Check the latest studies of Risperdal.

What is Gastric bypass?

Gastric bypass is found to be associated with 241 drugs and 337 conditions by eHealthMe. Check the latest studies of Gastric bypass.

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

126,253 people reported to have side effects when taking Risperdal.
Among them, 18 people (0.01%) have Gastric bypass.

Could Risperdal cause Gastric bypass?

Among these 18 people:

How long have people been on Risperdal when they have Gastric bypass? *

  • < 1 month: 0.0 %
  • 1 - 6 months: 100 %
  • 6 - 12 months: 0.0 %
  • 1 - 2 years: 0.0 %
  • 2 - 5 years: 0.0 %
  • 5 - 10 years: 0.0 %
  • 10+ years: 0.0 %

What is the gender of people who have Gastric bypass when taking Risperdal? *

  • female: 52.94 %
  • male: 47.06 %

What is the age of people who have Gastric bypass when taking Risperdal? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 38.46 %
  • 30-39: 23.08 %
  • 40-49: 7.69 %
  • 50-59: 30.77 %
  • 60+: 0.0 %

What are other drugs people take besides Risperdal? *

  1. Seroquel: 9 people, 50.00%
  2. Nexium: 7 people, 38.89%
  3. Paxil: 7 people, 38.89%
  4. Cymbalta: 7 people, 38.89%
  5. Celexa: 6 people, 33.33%
  6. Lorazepam: 6 people, 33.33%
  7. Neurontin: 6 people, 33.33%
  8. Xanax: 5 people, 27.78%
  9. Oxycontin: 5 people, 27.78%
  10. Topamax: 5 people, 27.78%

What are other side effects people have besides Gastric bypass? *

  1. Insomnia (sleeplessness): 6 people, 33.33%
  2. Weight Decreased: 5 people, 27.78%
  3. Keratitis (eye's cornea, the front part of the eye, becomes inflamed): 4 people, 22.22%
  4. Discomfort: 4 people, 22.22%
  5. Memory Loss: 4 people, 22.22%
  6. Malignant Neoplasm Progression (cancer tumour came back): 4 people, 22.22%
  7. Lung Infiltration (a substance that normally includes fluid, inflammatory exudates or cells that fill a region of lung): 4 people, 22.22%
  8. Weight Increased: 4 people, 22.22%
  9. Interstitial Lung Disease: 4 people, 22.22%
  10. Infection: 4 people, 22.22%

What are the existing conditions these people have? *

  1. Depression: 6 people, 33.33%
  2. Respiratory Tract Infection: 4 people, 22.22%
  3. Renal Cell Carcinoma (a kidney cancer): 4 people, 22.22%
  4. Psychotic Disorder: 4 people, 22.22%
  5. Pneumonia: 4 people, 22.22%
  6. Oedema (fluid collection in tissue): 4 people, 22.22%
  7. Fever: 4 people, 22.22%
  8. Dyspnea (difficult or laboured breathing): 4 people, 22.22%
  9. Deep Venous Thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis): 4 people, 22.22%
  10. Convulsion (muscles contract and relax rapidly and repeatedly, resulting in an uncontrolled shaking of the body): 3 people, 16.67%

* Approximation only. Some reports may have incomplete information.

Do you take Risperdal and have Gastric bypass?

- Check whether Gastric bypass 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 Risperdal:

Gastric bypass treatments and more:

How severe was Gastric bypass and when was it recovered:

Expand to all the drugs that have ingredients of risperidone:

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 Risperdal:

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 Gastric bypass:

Browse all the conditions that are associated with Gastric bypass:

Related publications that referenced our studies

How the study uses the data?

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