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Clozapine and Movement - unpredictable or jerky - a phase IV clinical study of FDA data

Summary:

Movement - unpredictable or jerky is reported as a side effect among people who take Clozapine (clozapine), especially for people who are male, 60+ old, also take Symmetrel, and have Parkinson's disease.

The phase IV clinical study analyzes which people have Movement - unpredictable or jerky when taking Clozapine. It is created by eHealthMe based on reports of 83,401 people who have side effects when taking Clozapine from the FDA, and is updated regularly.

What is Clozapine?

Clozapine has active ingredients of clozapine. It is often used in schizophrenia. eHealthMe is studying from 83,728 Clozapine users. Check the latest studies of Clozapine.

What is Movement - unpredictable or jerky?

Movement - unpredictable or jerky is found to be associated with 247 drugs and 731 conditions by eHealthMe. Check the latest studies of Movement - unpredictable or jerky.

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 Jul, 11, 2026

83,401 people reported to have side effects when taking Clozapine.
Among them, 33 people (0.04%) have Movement - unpredictable or jerky.

Could Clozapine cause Movement - unpredictable or jerky?

Among these 33 people:

What is the gender of people who have Movement - unpredictable or jerky when taking Clozapine? *

  • female: 18.18 %
  • male: 81.82 %

What is the age of people who have Movement - unpredictable or jerky when taking Clozapine? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 0.0 %
  • 30-39: 7.14 %
  • 40-49: 0.0 %
  • 50-59: 28.57 %
  • 60+: 64.29 %

What are other drugs people take besides Clozapine? *

  1. Symmetrel: 7 people, 21.21%
  2. Oxycodone: 6 people, 18.18%
  3. Sinemet Cr: 6 people, 18.18%
  4. Effexor: 5 people, 15.15%
  5. Trihexyphenidyl Hydrochloride: 4 people, 12.12%
  6. Lorazepam: 4 people, 12.12%
  7. Lyrica: 4 people, 12.12%
  8. Oxazepam: 4 people, 12.12%
  9. Rivastigmine: 3 people, 9.09%
  10. Clonazepam: 3 people, 9.09%

What are other side effects people have besides Movement - unpredictable or jerky? *

  1. Fall: 14 people, 42.42%
  2. Agitation (state of anxiety or nervous excitement): 14 people, 42.42%
  3. Memory Loss: 14 people, 42.42%
  4. Drowsiness: 14 people, 42.42%
  5. On And Off Phenomenon: 14 people, 42.42%
  6. Muscle Rigidity (muscle stiffness): 13 people, 39.39%
  7. Hallucinations (sensations that appear real but are created by your mind): 13 people, 39.39%
  8. Bradykinesia (decreased bodily movement. it is associated with basal ganglia diseases): 13 people, 39.39%
  9. Dyskinesia (abnormality or impairment of voluntary movement): 12 people, 36.36%
  10. Pain: 11 people, 33.33%

What are the existing conditions these people have? *

  1. Parkinson's Disease: 15 people, 45.45%
  2. Abnormal Faeces (abnormal stool): 13 people, 39.39%
  3. Schizoaffective Disorder Bipolar Type (mental illness featuring schizophrenia and a mood disorder with mania): 4 people, 12.12%
  4. Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 3 people, 9.09%
  5. Hypotension (abnormally low blood pressure): 3 people, 9.09%
  6. Hallucinations (sensations that appear real but are created by your mind): 3 people, 9.09%
  7. Agitation (state of anxiety or nervous excitement): 3 people, 9.09%
  8. Abnormal Dreams: 3 people, 9.09%
  9. Suicide Attempt: 1 person, 3.03%
  10. Psychotic Disorder: 1 person, 3.03%

* Approximation only. Some reports may have incomplete information.

Do you take Clozapine and have Movement - unpredictable or jerky?

- Check whether Movement - unpredictable or jerky 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 Clozapine:

Movement - unpredictable or jerky treatments and more:

How severe was Movement - unpredictable or jerky and when was it recovered:

Expand to all the drugs that have ingredients of clozapine:

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 Clozapine:

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 Movement - unpredictable or jerky:

Browse all the conditions that are associated with Movement - unpredictable or jerky:

Related publications that referenced our studies

How the study uses the data?

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