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Calcium carbonate and Blindness - a phase IV clinical study of FDA data

Summary:

Blindness is reported as a side effect among people who take Calcium carbonate (calcium), especially for people who are female, 60+ old, also take Vitamin D3, and have Rheumatoid arthritis.

The phase IV clinical study analyzes which people have Blindness when taking Calcium carbonate. It is created by eHealthMe based on reports of 15,732 people who have side effects when taking Calcium carbonate from the FDA, and is updated regularly.

What is Calcium carbonate?

Calcium carbonate has active ingredients of calcium. It is often used in gastroesophageal reflux disease. eHealthMe is studying from 16,045 Calcium carbonate users. Check the latest studies of Calcium carbonate.

What is Blindness?

Blindness is found to be associated with 1,510 drugs and 1,986 conditions by eHealthMe. Check the latest studies of Blindness.

On Jul, 14, 2026

15,732 people reported to have side effects when taking Calcium carbonate.
Among them, 32 people (0.2%) have Blindness.

Could Calcium carbonate cause Blindness?

Among these 32 people:

What is the gender of people who have Blindness when taking Calcium carbonate? *

  • female: 84.38 %
  • male: 15.62 %

What is the age of people who have Blindness when taking Calcium carbonate? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 3.85 %
  • 20-29: 0.0 %
  • 30-39: 0.0 %
  • 40-49: 11.54 %
  • 50-59: 15.38 %
  • 60+: 69.23 %

What are other drugs people take besides Calcium carbonate? *

  1. Acetaminophen: 10 people, 31.25%
  2. Vitamin D3: 10 people, 31.25%
  3. Gabapentin: 8 people, 25.00%
  4. Valtrex: 7 people, 21.88%
  5. Hydrochlorothiazide: 7 people, 21.88%
  6. Actemra: 7 people, 21.88%
  7. Prednisone: 7 people, 21.88%
  8. Synthroid: 7 people, 21.88%
  9. Tylenol: 7 people, 21.88%
  10. Lantus: 6 people, 18.75%

What are other side effects people have besides Blindness? *

  1. Pain: 11 people, 34.38%
  2. Stress And Anxiety: 11 people, 34.38%
  3. Weight Increased: 10 people, 31.25%
  4. Headache (pain in head): 10 people, 31.25%
  5. Weakness: 9 people, 28.12%
  6. Joint Pain: 9 people, 28.12%
  7. Constipation: 8 people, 25.00%
  8. Dizziness: 8 people, 25.00%
  9. Fall: 8 people, 25.00%
  10. Fatigue (feeling of tiredness): 8 people, 25.00%

What are the existing conditions these people have? *

  1. Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 10 people, 31.25%
  2. High Blood Pressure: 5 people, 15.62%
  3. Diabetes: 5 people, 15.62%
  4. High Blood Cholesterol: 5 people, 15.62%
  5. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 4 people, 12.50%
  6. Cataplexy (loss of muscle tone accompanied by full conscious awareness): 4 people, 12.50%
  7. Drowsiness: 3 people, 9.38%
  8. Type 2 Diabetes: 3 people, 9.38%
  9. Rickets (softening of bones): 3 people, 9.38%
  10. Pain: 2 people, 6.25%

* Approximation only. Some reports may have incomplete information.

Do you take Calcium carbonate and have Blindness?

- Check whether Blindness 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 Calcium carbonate:

Blindness treatments and more:

How severe was Blindness and when was it recovered:

Expand to all the drugs that have ingredients of calcium:

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 Calcium carbonate:

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 Blindness:

Browse all the conditions that are associated with Blindness:

How the study uses the data?

The study uses data from the FDA. It is based on calcium (the active ingredients of Calcium carbonate) and Calcium carbonate (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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