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Clozapine and Faeces hard - a phase IV clinical study of FDA data

Summary:

Faeces hard is reported as a side effect among people who take Clozapine (clozapine), especially for people who are female, 60+ old, have been taking the drug for 5 - 10 years also take Exelon, and have Parkinson's disease.

The phase IV clinical study analyzes which people have Faeces hard 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 Faeces hard?

Faeces hard is found to be associated with 435 drugs and 861 conditions by eHealthMe. Check the latest studies of Faeces hard.

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, 02, 2026

83,401 people reported to have side effects when taking Clozapine.
Among them, 68 people (0.08%) have Faeces hard.

Could Clozapine cause Faeces hard?

Among these 68 people:

How long have people been on Clozapine when they have Faeces hard? *

  • < 1 month: 0.0 %
  • 1 - 6 months: 50 %
  • 6 - 12 months: 0.0 %
  • 1 - 2 years: 0.0 %
  • 2 - 5 years: 0.0 %
  • 5 - 10 years: 50 %
  • 10+ years: 0.0 %

What is the gender of people who have Faeces hard when taking Clozapine? *

  • female: 62.12 %
  • male: 37.88 %

What is the age of people who have Faeces hard when taking Clozapine? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 3.92 %
  • 30-39: 1.96 %
  • 40-49: 1.96 %
  • 50-59: 7.84 %
  • 60+: 84.31 %

What are other drugs people take besides Clozapine? *

  1. Exelon: 16 people, 23.53%
  2. Sinemet: 10 people, 14.71%
  3. Rivastigmine: 8 people, 11.76%
  4. Furosemide: 6 people, 8.82%
  5. Neupro: 4 people, 5.88%
  6. Acetaminophen: 3 people, 4.41%
  7. Diclofenac: 3 people, 4.41%
  8. Cyanocobalamin: 3 people, 4.41%
  9. Midazolam: 3 people, 4.41%
  10. Naproxen: 3 people, 4.41%

What are other side effects people have besides Faeces hard? *

  1. Freezing Phenomenon: 56 people, 82.35%
  2. On And Off Phenomenon: 54 people, 79.41%
  3. Hallucinations (sensations that appear real but are created by your mind): 52 people, 76.47%
  4. Gait Disturbance: 51 people, 75.00%
  5. Musculoskeletal Stiffness (stiffness of the body's muscles, joints, tendons, ligaments and nerves): 48 people, 70.59%
  6. Dyskinesia (abnormality or impairment of voluntary movement): 48 people, 70.59%
  7. Muscle Rigidity (muscle stiffness): 47 people, 69.12%
  8. Cognitive Disorder (mental health disorders affects learning, memory, perception, and problem solving): 42 people, 61.76%
  9. Nausea (feeling of having an urge to vomit): 36 people, 52.94%
  10. Fatigue (feeling of tiredness): 36 people, 52.94%

What are the existing conditions these people have? *

  1. Parkinson's Disease: 57 people, 83.82%
  2. Abnormal Faeces (abnormal stool): 18 people, 26.47%
  3. Hallucinations (sensations that appear real but are created by your mind): 10 people, 14.71%
  4. Abnormal Dreams: 7 people, 10.29%
  5. Agitation (state of anxiety or nervous excitement): 7 people, 10.29%
  6. Incontinence (lack of moderation or self-control): 4 people, 5.88%
  7. Hypotension (abnormally low blood pressure): 4 people, 5.88%
  8. Salivary Hypersecretion (excess saliva secretion): 4 people, 5.88%
  9. Pain: 3 people, 4.41%
  10. Sleep Disorder: 3 people, 4.41%

* Approximation only. Some reports may have incomplete information.

Do you take Clozapine and have Faeces hard?

- Check whether Faeces hard 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:

Faeces hard treatments and more:

How severe was Faeces hard 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 Faeces hard:

Browse all the conditions that are associated with Faeces hard:

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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