Clopidogrel and Hemianopia - a phase IV clinical study of FDA data

Summary:

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

The phase IV clinical study analyzes which people have Hemianopia when taking Clopidogrel. It is created by eHealthMe based on reports of 91,038 people who have side effects when taking Clopidogrel from the FDA, and is updated regularly.

What is Clopidogrel?

Clopidogrel has active ingredients of clopidogrel. It is often used in blood clots. eHealthMe is studying from 92,160 Clopidogrel users. Check the latest studies of Clopidogrel.

What is Hemianopia?

Hemianopia (blindness or reduction in vision in one half of the visual field due to damage of the optic pathways in the brain) is found to be associated with 214 drugs and 400 conditions by eHealthMe. Check the latest studies of Hemianopia.



On Jul, 17, 2026

91,038 people reported to have side effects when taking Clopidogrel.
Among them, 22 people (0.02%) have Hemianopia.

Could Clopidogrel cause Hemianopia?

Among these 22 people:

How long have people been on Clopidogrel when they have Hemianopia? *

  • < 1 month: 66.67 %
  • 1 - 6 months: 0.0 %
  • 6 - 12 months: 0.0 %
  • 1 - 2 years: 0.0 %
  • 2 - 5 years: 33.33 %
  • 5 - 10 years: 0.0 %
  • 10+ years: 0.0 %

What is the gender of people who have Hemianopia when taking Clopidogrel? *

  • female: 35 %
  • male: 65 %

What is the age of people who have Hemianopia when taking Clopidogrel? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 0.0 %
  • 30-39: 5 %
  • 40-49: 0.0 %
  • 50-59: 30 %
  • 60+: 65 %

What are other drugs people take besides Clopidogrel? *

  1. Fragmin: 5 people, 22.73%
  2. Arixtra: 4 people, 18.18%
  3. Plavix: 3 people, 13.64%
  4. Heparin: 3 people, 13.64%
  5. Celebrex: 3 people, 13.64%
  6. Tegretol: 3 people, 13.64%
  7. Neurontin: 2 people, 9.09%
  8. Crestor: 2 people, 9.09%
  9. Mycostatin: 2 people, 9.09%
  10. Monistat: 2 people, 9.09%

What are other side effects people have besides Hemianopia? *

  1. Cerebral Haemorrhage (bleeding within the brain): 7 people, 31.82%
  2. Headache (pain in head): 7 people, 31.82%
  3. Neurologic Neglect Syndrome (neuropsychological condition in which, after damage to one hemisphere of the brain is sustained, a deficit in attention to and awareness of one side of space is observed): 7 people, 31.82%
  4. Gait Disturbance: 7 people, 31.82%
  5. Overdose: 6 people, 27.27%
  6. Visual Impairment: 5 people, 22.73%
  7. Visual Field Defect: 5 people, 22.73%
  8. Cognitive Disorder (mental health disorders affects learning, memory, perception, and problem solving): 5 people, 22.73%
  9. Hemiparesis (weakness on one side of the body): 5 people, 22.73%
  10. Ischaemic Stroke (stroke; caused by an interruption in the flow of blood to the brain): 4 people, 18.18%

What are the existing conditions these people have? *

  1. High Blood Pressure: 3 people, 13.64%
  2. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 3 people, 13.64%
  3. Multiple Myeloma (cancer of the plasma cells): 3 people, 13.64%
  4. Depression: 2 people, 9.09%
  5. Vulvovaginal Mycotic Infection (vulvovaginal fungal infection): 2 people, 9.09%
  6. Neuralgia (pain in one or more nerves): 2 people, 9.09%
  7. Osteoporosis (bones weak and more likely to break): 2 people, 9.09%
  8. High Blood Cholesterol: 2 people, 9.09%
  9. Percutaneous Coronary Intervention: 2 people, 9.09%
  10. Rash Erythematous (redness of the skin): 2 people, 9.09%

* Approximation only. Some reports may have incomplete information.

Do you take Clopidogrel and have Hemianopia?

- Check whether Hemianopia 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 Clopidogrel:

Hemianopia treatments and more:

How severe was Hemianopia and when was it recovered:

Expand to all the drugs that have ingredients of clopidogrel:

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 Clopidogrel:

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 Hemianopia:

Browse all the conditions that are associated with Hemianopia:

Related publications that referenced our studies


How the study uses the data?

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



Recent studies on eHealthMe: