Cialis and Thyroid function test abnormal - a phase IV clinical study of FDA data

Summary:

Thyroid function test abnormal is reported as a side effect among people who take Cialis (tadalafil), especially for people who are male, 50-59 old, have been taking the drug for < 1 month also take Sinemet, and have Prostate infection.

The phase IV clinical study analyzes which people have Thyroid function test abnormal 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 28,528 Cialis users. Check the latest studies of Cialis.

What is Thyroid function test abnormal?

Thyroid function test abnormal is found to be associated with 1,706 drugs and 1,582 conditions by eHealthMe. Check the latest studies of Thyroid function test abnormal.

On Nov, 22, 2025

26,412 people reported to have side effects when taking Cialis.
Among them, 14 people (0.05%) have Thyroid function test abnormal.

Could Cialis cause Thyroid function test abnormal?

Among these 14 people:

How long have people been on Cialis when they have Thyroid function test abnormal? *

What is the gender of people who have Thyroid function test abnormal when taking Cialis? *

female: 0.0 %
male: 100 %

What is the age of people who have Thyroid function test abnormal when taking Cialis? *

What are other drugs people take besides Cialis? *

What are other side effects people have besides Thyroid function test abnormal? *

Weakness: 4 people, 28.57%
Drug Ineffective: 2 people, 14.29%
Cough: 2 people, 14.29%
Hypersensitivity: 2 people, 14.29%
Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect): 2 people, 14.29%
Dyspnea (difficult or laboured breathing): 2 people, 14.29%
Decreased Activity: 2 people, 14.29%
Hypotension (abnormally low blood pressure): 2 people, 14.29%
Blood Testosterone Decreased: 1 person, 7.14%
Gastrointestinal Disorder (functional problems of gastrointestinal tract): 1 person, 7.14%

What are the existing conditions these people have? *

Prostate Infection: 2 people, 14.29%
Viral Infection: 1 person, 7.14%
Metastases To Bone (cancer spreads to bone): 1 person, 7.14%
Cardiac Failure Chronic: 1 person, 7.14%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 1 person, 7.14%
Dry Mouth: 1 person, 7.14%
Fungal Infection: 1 person, 7.14%
Hair Loss: 1 person, 7.14%
Hypercalcaemia (elevated calcium (ca+) level in the blood): 1 person, 7.14%
Immune System Disorder: 1 person, 7.14%

* Approximation only. Some reports may have incomplete information.

Do you take Cialis and have Thyroid function test abnormal?

- Check whether Thyroid function test abnormal 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 (28,528 reports)

Browse all side effects of Cialis:

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Browse all the drugs that are associated with Thyroid function test abnormal:

Thyroid function test abnormal (1,706 drugs)

Browse all the conditions that are associated with Thyroid function test abnormal:

Thyroid function test abnormal (1,582 conditions)

Drugs similar to Cialis and Thyroid function test abnormal :

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.