Risperdal and Formication - a phase IV clinical study of FDA data

Summary:

Formication is reported as a side effect among people who take Risperdal (risperidone), especially for people who are female, 30-39 old, have been taking the drug for < 1 month also take Seroquel, and have Pain.

The phase IV clinical study analyzes which people have Formication 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 127,727 Risperdal users. Check the latest studies of Risperdal.

What is Formication?

Formication (a sensation that exactly resembles that of small insects crawling on (or under) the skin) is found to be associated with 569 drugs and 915 conditions by eHealthMe. Check the latest studies of Formication.

On Jun, 26, 2025

126,253 people reported to have side effects when taking Risperdal.
Among them, 51 people (0.04%) have Formication.

Among these 51 people:

How long have people been on Risperdal when they have Formication? *

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

female: 58.82 %
male: 41.18 %

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

What are other drugs people take besides Risperdal? *

What are other side effects people have besides Formication? *

Stress And Anxiety: 20 people, 39.22%
Headache (pain in head): 20 people, 39.22%
Fatigue (feeling of tiredness): 20 people, 39.22%
Agitation (state of anxiety or nervous excitement): 19 people, 37.25%
Dizziness: 19 people, 37.25%
Depression: 19 people, 37.25%
Hallucination, Auditory (perceiving sounds without auditory stimulus): 18 people, 35.29%
Drug Withdrawal Syndrome (interfere with normal social, occupational, or other functioning. are not due to another medical condition, drug use, or discontinuation): 15 people, 29.41%
Tremor (trembling or shaking movements in one or more parts of your body): 15 people, 29.41%
Blood Glucose Increased: 15 people, 29.41%

What are the existing conditions these people have? *

Pain: 12 people, 23.53%
Attention Deficit Hyperactivity Disorder (a chronic condition including attention difficulty, hyperactivity, and impulsiveness): 7 people, 13.73%
Panic Disorder: 4 people, 7.84%
Stress And Anxiety: 4 people, 7.84%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 3 people, 5.88%
Abnormal Behavior: 2 people, 3.92%
Quit Smoking: 2 people, 3.92%
Autism Spectrum Disorder (developmental disabilities that can cause significant social, communication and behavioural challenges): 2 people, 3.92%
Depression: 2 people, 3.92%
Hallucination, Auditory (perceiving sounds without auditory stimulus): 1 person, 1.96%

* Approximation only. Some reports may have incomplete information.

Do you take Risperdal and have Formication?

- Check whether Formication 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:

Risperdal (127,727 reports)

Formication treatments and more:

Formication (8,246 reports)

How severe was Formication and when was it recovered:

Formication in Risperdal

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 Formication:

Formication (569 drugs)

Browse all the conditions that are associated with Formication:

Formication (915 conditions)

Related publications that referenced our studies

Janardhana P, Nagaraj AK, Basavanna PL, "Risperidone-induced skin rash", Indian journal of psychiatry, 2016 Jan .
Dsouza MC, "Could risperidone have caused the cataract?: A case report and review of literature", Journal of Research in Psychiatry and Behavioral Science, 2015 Jan .
Dsouza MC, "COULD RISPERIDONE HAVE CAUSED THE CATARACT", JRPBS, 2015 Jan .
Ray RK, Bashir MA, Rao S, "Co-Administration of Risperidone and Sodium Valproate Causing Bilateral Chronic Exertional Lower Leg Compartment Syndrome", Open Journal of Orthopedics, 2014 Apr .
Hosseini, S. H., & Ahmadi, A., "Peripheral edema occurring during treatment with risperidone combined with citalopram", Case reports in medicine, 2012 Jan .

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.