Actemra and Euthyrox drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Actemra (tocilizumab) and Euthyrox (levothyroxine sodium). Common drug interactions include pain among females and agranulocytosis among males.

The phase IV clinical study analyzes what interactions people have when they take Actemra and Euthyrox. It is created by eHealthMe based on reports of 14 people who take the same drugs from the FDA, and is updated regularly.

What is Actemra?

Actemra has active ingredients of tocilizumab. It is often used in rheumatoid arthritis. eHealthMe is studying from 102,759 Actemra users. Check the latest studies of Actemra.

What is Euthyrox?

Euthyrox has active ingredients of levothyroxine sodium. It is often used in hypothyroidism. eHealthMe is studying from 8,740 Euthyrox users. Check the latest studies of Euthyrox.



On Jul, 14, 2026

14 people who take Actemra and Euthyrox together, and have interactions are studied.

Actemra and Euthyrox drug interactions.

What are the common drug interactions of Actemra and Euthyrox, by gender? *:

female:

  1. Pain
  2. Drug ineffective
  3. Pain in extremity
  4. Blood pressure increased
  5. Erythema (redness of the skin)
  6. Fatigue (feeling of tiredness)
  7. Food allergy
  8. Hallucination (an experience involving the perception of something not present)
  9. Headache (pain in head)
  10. Incontinence (lack of moderation or self-control)

male:

  1. Agranulocytosis (a deficiency of granulocytes in the blood, causing increased vulnerability to infection)
  2. Leukopenia (less number of white blood cells in blood)
  3. Arthropathy
  4. Cellulitis (infection under the skin)
  5. Infection
  6. Pain
  7. Pyrexia (fever)
  8. Swelling

What are the common drug interactions of Actemra and Euthyrox, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

  1. Escherichia urinary tract infection (urinary tract infection by escherichia coli)
  2. Maternal exposure during pregnancy (use of substance during pregnancy)
  3. Urinary tract infection enterococcal

40-49:

  1. C-reactive protein increased
  2. Urinary tract infection

50-59:

  1. Arthralgia (joint pain)
  2. Nausea (feeling of having an urge to vomit)
  3. Incontinence (lack of moderation or self-control)
  4. Urinary tract inflammation
  5. Agranulocytosis (a deficiency of granulocytes in the blood, causing increased vulnerability to infection)
  6. Leukopenia (less number of white blood cells in blood)
  7. Abdominal distension
  8. Abdominal pain upper
  9. Alopecia (absence of hair from areas of the body)
  10. Arterial disorder

60+:

n/a

What are the existing conditions these people have? *

  1. Upper Gastrointestinal Haemorrhage (upper gastrointestinal bleeding): 3 people, 21.43%
  2. High Blood Pressure: 3 people, 21.43%
  3. Pain: 2 people, 14.29%
  4. Lung Adenocarcinoma (a form of non-small cell lung cancer): 2 people, 14.29%
  5. Embolism Venous (embolus may pass into the arterial system): 2 people, 14.29%
  6. Type 2 Diabetes: 1 person, 7.14%
  7. Thyroid Diseases: 1 person, 7.14%
  8. Thrombosis (formation of a blood clot inside a blood vessel): 1 person, 7.14%
  9. Takayasu's Arteritis (an inflammation of the aorta -- the artery that carries blood from the heart to the rest of the body): 1 person, 7.14%
  10. Joint Pain: 1 person, 7.14%

* Approximation only. Some reports may have incomplete information.

Do you take Actemra and Euthyrox?

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Related studies:

Effectiveness of, side effects of, and alternative drugs to the 2 drugs:

Browse all drug interactions of Actemra and Euthyrox:

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

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 Actemra:

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 side effects of Euthyrox:

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 interactions between Actemra and drugs from A to Z:

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 interactions between Euthyrox and drugs from A to Z:

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

How the study uses the data?

The study uses data from the FDA. It is based on tocilizumab and levothyroxine sodium (the active ingredients of Actemra and Euthyrox, respectively), and Actemra and Euthyrox (the brand names). 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.

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