Mepron and Constipation - a phase IV clinical study of FDA data

Summary:

Constipation is reported as a side effect among people who take Mepron (atovaquone), especially for people who are male, 60+ old, have been taking the drug for < 1 month also take Zofran, and have Multiple myeloma.

The phase IV clinical study analyzes which people have Constipation when taking Mepron. It is created by eHealthMe based on reports of 2,035 people who have side effects when taking Mepron from the FDA, and is updated regularly.

What is Mepron?

Mepron has active ingredients of atovaquone. It is often used in babesiosis. eHealthMe is studying from 2,091 Mepron users. Check the latest studies of Mepron.

What is Constipation?

Constipation is found to be associated with 3,005 drugs and 4,601 conditions by eHealthMe. Check the latest studies of Constipation.



On Feb, 02, 2026

2,035 people reported to have side effects when taking Mepron.
Among them, 25 people (1.23%) have Constipation.

Could Mepron cause Constipation?

Among these 25 people:

How long have people been on Mepron when they have Constipation? *

  • < 1 month: 100 %
  • 1 - 6 months: 0.0 %
  • 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 Constipation when taking Mepron? *

  • female: 47.83 %
  • male: 52.17 %

What is the age of people who have Constipation when taking Mepron? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 0.0 %
  • 30-39: 12.5 %
  • 40-49: 12.5 %
  • 50-59: 18.75 %
  • 60+: 56.25 %

What are other drugs people take besides Mepron? *

  1. Zofran: 7 people, 28.00%
  2. Amlodipine: 5 people, 20.00%
  3. Folic Acid: 4 people, 16.00%
  4. Aspirin: 4 people, 16.00%
  5. Ativan: 4 people, 16.00%
  6. Prednisone: 4 people, 16.00%
  7. Vitamin D3: 4 people, 16.00%
  8. Oxycodone: 4 people, 16.00%
  9. Morphine: 4 people, 16.00%
  10. Mestinon: 3 people, 12.00%

What are other side effects people have besides Constipation? *

  1. Fatigue (feeling of tiredness): 8 people, 32.00%
  2. Diarrhea: 8 people, 32.00%
  3. Weakness: 7 people, 28.00%
  4. Fever: 7 people, 28.00%
  5. Dyspnea (difficult or laboured breathing): 7 people, 28.00%
  6. Rashes (redness): 5 people, 20.00%
  7. Nausea (feeling of having an urge to vomit): 5 people, 20.00%
  8. Abdominal Pain: 5 people, 20.00%
  9. Dizziness: 4 people, 16.00%
  10. Leukocytosis (increased white blood cells): 4 people, 16.00%

What are the existing conditions these people have? *

  1. Multiple Myeloma (cancer of the plasma cells): 6 people, 24.00%
  2. High Blood Pressure: 4 people, 16.00%
  3. Lambert-Eaton Syndrome (this means your immune system mistakenly targets healthy cells and tissues in the body): 3 people, 12.00%
  4. Small Cell Lung Cancer Limited Stage (small cell lung cancer that has not spread to other body parts): 3 people, 12.00%
  5. Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 2 people, 8.00%
  6. Stress And Anxiety: 2 people, 8.00%
  7. Renal Cell Carcinoma (a kidney cancer): 2 people, 8.00%
  8. Pneumonia: 2 people, 8.00%
  9. Breast Cancer Female: 2 people, 8.00%
  10. Malignant Melanoma (skin cancer rises from melancytes): 2 people, 8.00%

* Approximation only. Some reports may have incomplete information.

Do you take Mepron and have Constipation?

- Check whether Constipation is associated with a drug or a condition
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Related studies:

Effectiveness of, long term effects of, and alternative drugs to Mepron:

Constipation treatments and more:

How severe was Constipation and when was it recovered:

Expand to all the drugs that have ingredients of atovaquone:

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 Mepron:

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 Constipation:

Browse all the conditions that are associated with Constipation:


How the study uses the data?

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