Synthroid and Blood electrolytes decreased - a phase IV clinical study of FDA data

Summary:

Blood electrolytes decreased is reported as a side effect among people who take Synthroid (levothyroxine sodium), especially for people who are female, 60+ old, also take Calcium, and have Diarrhea.

The phase IV clinical study analyzes which people have Blood electrolytes decreased when taking Synthroid. It is created by eHealthMe based on reports of 237,758 people who have side effects when taking Synthroid from the FDA, and is updated regularly.

What is Synthroid?

Synthroid has active ingredients of levothyroxine sodium. It is often used in hypothyroidism. eHealthMe is studying from 249,198 Synthroid users. Check the latest studies of Synthroid.

What is Blood electrolytes decreased?

Blood electrolytes decreased is found to be associated with 194 drugs and 312 conditions by eHealthMe. Check the latest studies of Blood electrolytes decreased.

On Jul, 29, 2026

237,758 people reported to have side effects when taking Synthroid.
Among them, 47 people (0.02%) have Blood electrolytes decreased.

Could Synthroid cause Blood electrolytes decreased?

Among these 47 people:

What is the gender of people who have Blood electrolytes decreased when taking Synthroid? *

female: 80.43 %
male: 19.57 %

What is the age of people who have Blood electrolytes decreased when taking Synthroid? *

What are other drugs people take besides Synthroid? *

What are other side effects people have besides Blood electrolytes decreased? *

Nausea (feeling of having an urge to vomit): 24 people, 51.06%
Diarrhea: 24 people, 51.06%
High Blood Pressure: 18 people, 38.30%
Nausea And Vomiting: 16 people, 34.04%
Headache (pain in head): 16 people, 34.04%
Constipation: 14 people, 29.79%
Rashes (redness): 14 people, 29.79%
Hypotension (abnormally low blood pressure): 13 people, 27.66%
Hypocalcaemia (levels of calcium in blood serum are abnormally low): 13 people, 27.66%
Tumor Lysis Syndrome: 13 people, 27.66%

What are the existing conditions these people have? *

Thyroid Cancer: 13 people, 27.66%
Diarrhea: 13 people, 27.66%
Blood Calcium Decreased: 12 people, 25.53%
High Blood Pressure: 4 people, 8.51%
Pain: 4 people, 8.51%
Idiopathic Pulmonary Fibrosis (chronic lung disease): 3 people, 6.38%
Prostate Cancer: 3 people, 6.38%
Multiple Myeloma (cancer of the plasma cells): 2 people, 4.26%
Psoriatic Arthropathy (inflammation of the skin and joints with kin condition which typically causes patches (plaques) of red, scaly skin to develop): 2 people, 4.26%
Chronic Lymphocytic Leukaemia (cancer in which the bone marrow makes too many lymphocytes (a type of white blood cell)): 2 people, 4.26%

* Approximation only. Some reports may have incomplete information.

Do you take Synthroid and have Blood electrolytes decreased?

- Check whether Blood electrolytes decreased is associated with a drug or a condition
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Related studies:

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

Synthroid (249,198 reports)

Browse all side effects of Synthroid:

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 Blood electrolytes decreased:

Blood electrolytes decreased (194 drugs)

Browse all the conditions that are associated with Blood electrolytes decreased:

Blood electrolytes decreased (312 conditions)

How the study uses the data?

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