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Provigil and Clostridium difficile colitis - a phase IV clinical study of FDA data

Summary:

Clostridium difficile colitis is reported as a side effect among people who take Provigil (modafinil), especially for people who are female, 50-59 old, also take Tysabri, and have Multiple sclerosis.

The phase IV clinical study analyzes which people have Clostridium difficile colitis when taking Provigil. It is created by eHealthMe based on reports of 23,659 people who have side effects when taking Provigil from the FDA, and is updated regularly.

What is Provigil?

Provigil has active ingredients of modafinil. It is often used in narcolepsy. eHealthMe is studying from 25,230 Provigil users. Check the latest studies of Provigil.

What is Clostridium difficile colitis?

Clostridium difficile colitis (inflammation of colon by clostridium difficile bacteria infection) is found to be associated with 1,043 drugs and 1,786 conditions by eHealthMe. Check the latest studies of Clostridium difficile colitis.

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

23,659 people reported to have side effects when taking Provigil.
Among them, 21 people (0.09%) have Clostridium difficile colitis.

Could Provigil cause Clostridium difficile colitis?

Among these 21 people:

What is the gender of people who have Clostridium difficile colitis when taking Provigil? *

  • female: 52.38 %
  • male: 47.62 %

What is the age of people who have Clostridium difficile colitis when taking Provigil? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 0.0 %
  • 30-39: 42.86 %
  • 40-49: 4.76 %
  • 50-59: 47.62 %
  • 60+: 4.76 %

What are other drugs people take besides Provigil? *

  1. Tysabri: 15 people, 71.43%
  2. Ambien: 13 people, 61.90%
  3. Lexapro: 13 people, 61.90%
  4. Flomax: 8 people, 38.10%
  5. Dalfampridine: 8 people, 38.10%
  6. Zanaflex: 8 people, 38.10%
  7. Lamisil: 8 people, 38.10%
  8. Clonazepam: 8 people, 38.10%
  9. Vancomycin: 6 people, 28.57%
  10. Vitamin D3: 6 people, 28.57%

What are other side effects people have besides Clostridium difficile colitis? *

  1. Pneumonia: 12 people, 57.14%
  2. Progressive Multifocal Leukoencephalopathy (rapidly progressive neuromuscular disease caused by opportunistic infection of brain cells): 8 people, 38.10%
  3. Atrial Fibrillation/flutter (atrial fibrillation and flutter are abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles): 8 people, 38.10%
  4. Candidiasis (candidiasis or thrush is a fungal infection): 8 people, 38.10%
  5. Sepsis (a severe blood infection that can lead to organ failure and death): 5 people, 23.81%
  6. Confusional State: 5 people, 23.81%
  7. Cellulitis (infection under the skin): 5 people, 23.81%
  8. Chest Pain: 4 people, 19.05%
  9. Fibromyalgia (a long-term condition which causes pain all over the body): 4 people, 19.05%
  10. Depressed Level Of Consciousness: 4 people, 19.05%

What are the existing conditions these people have? *

  1. Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 16 people, 76.19%
  2. Insomnia (sleeplessness): 4 people, 19.05%
  3. High Blood Pressure: 4 people, 19.05%
  4. Depression: 4 people, 19.05%
  5. Pain: 3 people, 14.29%
  6. Multiple Myeloma (cancer of the plasma cells): 3 people, 14.29%
  7. Urinary Tract Infection: 2 people, 9.52%
  8. Stress And Anxiety: 1 person, 4.76%
  9. Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 1 person, 4.76%
  10. Ill-Defined Disorder: 1 person, 4.76%

* Approximation only. Some reports may have incomplete information.

Do you take Provigil and have Clostridium difficile colitis?

- Check whether Clostridium difficile colitis 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 Provigil:

Clostridium difficile colitis treatments and more:

How severe was Clostridium difficile colitis and when was it recovered:

Expand to all the drugs that have ingredients of modafinil:

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 Provigil:

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 Clostridium difficile colitis:

Browse all the conditions that are associated with Clostridium difficile colitis:

Related publications that referenced our studies

How the study uses the data?

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