Cytomel and Cardiac failure - a phase IV clinical study of FDA data

Summary:

Cardiac failure is reported as a side effect among people who take Cytomel (liothyronine sodium), especially for people who are male, 60+ old, also take Coreg, and have Acute myeloid leukaemia.

The phase IV clinical study analyzes which people have Cardiac failure when taking Cytomel. It is created by eHealthMe based on reports of 6,807 people who have side effects when taking Cytomel from the FDA, and is updated regularly.

What is Cytomel?

Cytomel has active ingredients of liothyronine sodium. It is often used in hypothyroidism. eHealthMe is studying from 7,596 Cytomel users. Check the latest studies of Cytomel.

What is Cardiac failure?

Cardiac failure is found to be associated with 2,059 drugs and 2,213 conditions by eHealthMe. Check the latest studies of Cardiac failure.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.



On Aug, 31, 2026

6,807 people reported to have side effects when taking Cytomel.
Among them, 14 people (0.21%) have Cardiac failure.

Could Cytomel cause Cardiac failure?

Among these 14 people:

What is the gender of people who have Cardiac failure when taking Cytomel? *

  • female: 42.86 %
  • male: 57.14 %

What is the age of people who have Cardiac failure when taking Cytomel? *

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

What are other drugs people take besides Cytomel? *

  1. Synthroid: 5 people, 35.71%
  2. Lasix: 5 people, 35.71%
  3. Coreg: 5 people, 35.71%
  4. Valium: 3 people, 21.43%
  5. Zocor: 3 people, 21.43%
  6. Novolog: 3 people, 21.43%
  7. Pepcid: 3 people, 21.43%
  8. Lortab: 3 people, 21.43%
  9. Temazepam: 3 people, 21.43%
  10. Zoloft: 3 people, 21.43%

What are other side effects people have besides Cardiac failure? *

  1. Dyspnea (difficult or laboured breathing): 9 people, 64.29%
  2. Weight Increased: 7 people, 50.00%
  3. Oedema Peripheral (superficial swelling): 6 people, 42.86%
  4. Hypotension (abnormally low blood pressure): 5 people, 35.71%
  5. Cardiac Arrest: 5 people, 35.71%
  6. Chest Pain: 5 people, 35.71%
  7. Dizziness: 5 people, 35.71%
  8. Weakness: 4 people, 28.57%
  9. Chronic Renal Failure (kidney failure): 4 people, 28.57%
  10. Dehydration (dryness resulting from the removal of water): 4 people, 28.57%

What are the existing conditions these people have? *

  1. Stress And Anxiety: 1 person, 7.14%
  2. Panic Disorder: 1 person, 7.14%
  3. Myelodysplastic Syndrome (a group of conditions that occur when the blood-forming cells in the bone marrow are damaged): 1 person, 7.14%
  4. Fungal Infection: 1 person, 7.14%
  5. Emotional Disorder: 1 person, 7.14%
  6. Chronic Myelomonocytic Leukaemia (cancers of the blood-forming cells of the bone marrow): 1 person, 7.14%
  7. Adrenal Insufficiency (a condition in which the adrenal glands do not produce adequate amounts of steroids): 1 person, 7.14%
  8. Acute Myeloid Leukaemia (acute cancer in which the bone marrow makes abnormal myeloblasts): 1 person, 7.14%

* Approximation only. Some reports may have incomplete information.

Do you take Cytomel and have Cardiac failure?

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

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

Cardiac failure treatments and more:

How severe was Cardiac failure and when was it recovered:

Expand to all the drugs that have ingredients of liothyronine sodium:

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 Cytomel:

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 Cardiac failure:

Browse all the conditions that are associated with Cardiac failure:


How the study uses the data?

The study uses data from the FDA. It is based on liothyronine sodium (the active ingredients of Cytomel) and Cytomel (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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