Hydroxyzine 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 Hydroxyzine (hydroxyzine hydrochloride), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Gabapentin, and have Breast cancer metastatic.

The phase IV clinical study analyzes which people have Thyroid function test abnormal when taking Hydroxyzine. It is created by eHealthMe based on reports of 51,890 people who have side effects when taking Hydroxyzine from the FDA, and is updated regularly.

What is Hydroxyzine?

Hydroxyzine has active ingredients of hydroxyzine hydrochloride. It is often used in stress and anxiety. eHealthMe is studying from 54,057 Hydroxyzine users. Check the latest studies of Hydroxyzine.

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, 11, 2025

51,890 people reported to have side effects when taking Hydroxyzine.
Among them, 69 people (0.13%) have Thyroid function test abnormal.

Could Hydroxyzine cause Thyroid function test abnormal?

Among these 69 people:

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

  • < 1 month: 100 %
  • 1 - 6 months: 0.0 %
  • 6 - 12 months: 0.0 %
  • 1 - 2 years: 0.0 %
  • 2 - 5 years: 0.0 %
  • 5 - 10 years: 0.0 %
  • 10+ years: 0.0 %

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

  • female: 87.69 %
  • male: 12.31 %

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

  • 0-1: 0.0 %
  • 2-9: 2.5 %
  • 10-19: 0.0 %
  • 20-29: 2.5 %
  • 30-39: 5.0 %
  • 40-49: 12.5 %
  • 50-59: 30.0 %
  • 60+: 47.5 %

What are other drugs people take besides Hydroxyzine? *

  1. Gabapentin: 12 people, 17.39%
  2. Calcium: 11 people, 15.94%
  3. Lyrica: 11 people, 15.94%
  4. Vitamin D3: 11 people, 15.94%
  5. Clonazepam: 10 people, 14.49%
  6. Kisqali: 10 people, 14.49%
  7. Vitamin B12: 10 people, 14.49%
  8. Fulvestrant: 10 people, 14.49%
  9. Vitamin D: 10 people, 14.49%
  10. Pantoprazole: 9 people, 13.04%

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

  1. Diarrhea: 23 people, 33.33%
  2. Fatigue (feeling of tiredness): 22 people, 31.88%
  3. Pain: 21 people, 30.43%
  4. Nausea And Vomiting: 20 people, 28.99%
  5. Nausea (feeling of having an urge to vomit): 20 people, 28.99%
  6. Joint Pain: 18 people, 26.09%
  7. Weight Increased: 18 people, 26.09%
  8. Dizziness: 16 people, 23.19%
  9. Indigestion: 16 people, 23.19%
  10. Headache (pain in head): 16 people, 23.19%

What are the existing conditions these people have? *

  1. Furuncle (infection of the hair follicle): 10 people, 14.49%
  2. Breast Cancer Metastatic: 10 people, 14.49%
  3. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 9 people, 13.04%
  4. Breast Cancer: 9 people, 13.04%
  5. Cataplexy (loss of muscle tone accompanied by full conscious awareness): 7 people, 10.14%
  6. Psoriasis (immune-mediated disease that affects the skin): 5 people, 7.25%
  7. Pain: 4 people, 5.80%
  8. Immunodeficiency Common Variable: 4 people, 5.80%
  9. Fibromyalgia (a long-term condition which causes pain all over the body): 4 people, 5.80%
  10. Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 4 people, 5.80%

* Approximation only. Some reports may have incomplete information.

Do you take Hydroxyzine and have Thyroid function test abnormal?

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Related studies:

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

Thyroid function test abnormal treatments and more:

How severe was Thyroid function test abnormal and when was it recovered:

Expand to all the drugs that have ingredients of hydroxyzine hydrochloride:

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 Hydroxyzine:

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 Thyroid function test abnormal:

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

Drugs similar to Hydroxyzine and Thyroid function test abnormal :

Related publications that referenced our studies


How the study uses the data?

The study uses data from the FDA. It is based on hydroxyzine hydrochloride (the active ingredients of Hydroxyzine) and Hydroxyzine (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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