Tamoxifen citrate and Myoclonus - a phase IV clinical study of FDA data

Summary:

Myoclonus is reported as a side effect among people who take Tamoxifen citrate (tamoxifen citrate), especially for people who are female, 50-59 old, have been taking the drug for 1 - 6 months also take Flonase, and have Arthritis.

The phase IV clinical study analyzes which people have Myoclonus when taking Tamoxifen citrate. It is created by eHealthMe based on reports of 10,731 people who have side effects when taking Tamoxifen citrate from the FDA, and is updated regularly.

What is Tamoxifen citrate?

Tamoxifen citrate has active ingredients of tamoxifen citrate. It is often used in breast cancer. eHealthMe is studying from 11,943 Tamoxifen citrate users. Check the latest studies of Tamoxifen citrate.

What is Myoclonus?

Myoclonus (a brief, involuntary twitching of a muscle or a group of muscles) is found to be associated with 757 drugs and 1,139 conditions by eHealthMe. Check the latest studies of Myoclonus.

On Jul, 22, 2026

10,731 people reported to have side effects when taking Tamoxifen citrate.
Among them, 13 people (0.12%) have Myoclonus.

Could Tamoxifen citrate cause Myoclonus?

Among these 13 people:

How long have people been on Tamoxifen citrate when they have Myoclonus? *

What is the gender of people who have Myoclonus when taking Tamoxifen citrate? *

female: 69.23 %
male: 30.77 %

What is the age of people who have Myoclonus when taking Tamoxifen citrate? *

What are other drugs people take besides Tamoxifen citrate? *

What are other side effects people have besides Myoclonus? *

Pain: 9 people, 69.23%
Oedema Peripheral (superficial swelling): 8 people, 61.54%
Lymph Follicular Hypertrophy (an increase in the size of the lymph node follicles): 8 people, 61.54%
Anaemia (lack of blood): 7 people, 53.85%
Stress And Anxiety: 7 people, 53.85%
Fatigue (feeling of tiredness): 7 people, 53.85%
Weakness: 6 people, 46.15%
Wrist Fracture: 5 people, 38.46%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 5 people, 38.46%
Diabetes: 5 people, 38.46%

What are the existing conditions these people have? *

Stable Angina (a constant chest pain): 5 people, 38.46%
Menopausal Symptoms: 5 people, 38.46%
Hypersensitivity: 5 people, 38.46%
High Blood Pressure: 5 people, 38.46%
High Blood Cholesterol: 5 people, 38.46%
Arthritis (form of joint disorder that involves inflammation of one or more joints): 5 people, 38.46%
Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 4 people, 30.77%
Pain: 2 people, 15.38%
Hypercorticoidism (excessive secretion of one or more steroid hormones of the adrenal cortex): 2 people, 15.38%

* Approximation only. Some reports may have incomplete information.

Do you take Tamoxifen citrate and have Myoclonus?

- Check whether Myoclonus 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 Tamoxifen citrate:

Tamoxifen citrate (11,943 reports)

Myoclonus treatments and more:

Myoclonus (14,211 reports)

Browse all side effects of Tamoxifen citrate:

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 Myoclonus:

Myoclonus (757 drugs)

Browse all the conditions that are associated with Myoclonus:

Myoclonus (1,139 conditions)

Related publications that referenced our studies

K?rm?z?bekmez H, Yesiltepe Mutlu RG, Dursun F, ??güven ?P, "Tamoxifen-associated hirsutism: an unusual side effect in a 5-year-old girl with McCune-Albright syndrome", Journal of Pediatric Endocrinology and Metabolism, 2015 Sep .
K?rm?z?bekmez H, Yesiltepe Mutlu RG, Dursun F, ??güven ?P, "Tamoxifen-associated hirsutism: an unusual side effect in a 5-year-old girl with McCune-Albright syndrome", Journal of Pediatric Endocrinology and Metabolism, 2015 Sep .

How the study uses the data?

The study uses data from the FDA. It is based on tamoxifen citrate (the active ingredients of Tamoxifen citrate) and Tamoxifen citrate (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.