Cialis and Glaucoma - a phase IV clinical study of FDA data

Summary:

Glaucoma is reported as a side effect among people who take Cialis (tadalafil), especially for people who are male, 60+ old, have been taking the drug for 2 - 5 years also take Levitra, and have Narcolepsy.

The phase IV clinical study analyzes which people have Glaucoma when taking Cialis. It is created by eHealthMe based on reports of 26,412 people who have side effects when taking Cialis from the FDA, and is updated regularly.

What is Cialis?

Cialis has active ingredients of tadalafil. It is often used in erection problems. eHealthMe is studying from 28,532 Cialis users. Check the latest studies of Cialis.

What is Glaucoma?

Glaucoma (increased fluid pressure in the eye with vision loss) is found to be associated with 1,236 drugs and 1,653 conditions by eHealthMe. Check the latest studies of Glaucoma.

On Jul, 12, 2026

26,412 people reported to have side effects when taking Cialis.
Among them, 57 people (0.22%) have Glaucoma.

Among these 57 people:

How long have people been on Cialis when they have Glaucoma? *

What is the gender of people who have Glaucoma when taking Cialis? *

female: 0.0 %
male: 100 %

What is the age of people who have Glaucoma when taking Cialis? *

What are other drugs people take besides Cialis? *

What are other side effects people have besides Glaucoma? *

Retinal Haemorrhage (bleeding from retina): 11 people, 19.30%
Cataract (clouding of the lens inside the eye): 10 people, 17.54%
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): 9 people, 15.79%
Headache (pain in head): 8 people, 14.04%
Chest Pain: 8 people, 14.04%
Retinal Vessel Occlusion (a blockage in one of the small arteries): 7 people, 12.28%
Macular Oedema (fluid and protein deposits collect on or under the macula of the eye (a yellow central area of the retina) and causes it to thicken): 7 people, 12.28%
Visual Acuity Reduced (reduced clearness of vision): 6 people, 10.53%
Vision Blurred: 6 people, 10.53%
Iris Neovascularisation (a condition of the iris of the eye in which new abnormal blood vessels): 5 people, 8.77%

What are the existing conditions these people have? *

High Blood Pressure: 4 people, 7.02%
Bladder Outlet Obstruction (urological condition where the urine flow from the urinary bladder through the urethra is impeded): 4 people, 7.02%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 4 people, 7.02%
Psoriasis (immune-mediated disease that affects the skin): 2 people, 3.51%
Multiple Myeloma (cancer of the plasma cells): 2 people, 3.51%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 2 people, 3.51%
Drowsiness: 2 people, 3.51%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 1 person, 1.75%
Bronchitis (inflammation of the mucous membrane in the bronchial tubes): 1 person, 1.75%
Diabetes: 1 person, 1.75%

* Approximation only. Some reports may have incomplete information.

Do you take Cialis and have Glaucoma?

- Check whether Glaucoma 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 Cialis:

Cialis (28,532 reports)

Glaucoma treatments and more:

Glaucoma (61,926 reports)

Browse all side effects of Cialis:

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 Glaucoma:

Glaucoma (1,236 drugs)

Browse all the conditions that are associated with Glaucoma:

Glaucoma (1,653 conditions)

Related publications that referenced our studies

Hu CY, Lee BJ, Cheng HF, Wang CY, "Acetazolamide-related life-threatening hypophosphatemia in a glaucoma patient", Journal of glaucoma, 2015 Apr .
Hu CY, Lee BJ, Cheng HF, Wang CY, "Acetazolamide-related life-threatening hypophosphatemia in a glaucoma patient", Journal of glaucoma, 2015 Apr .

How the study uses the data?

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