Armour thyroid and Formication - a phase IV clinical study of FDA data

Summary:

Formication is reported as a side effect among people who take Armour thyroid (thyroid tablets, usp), especially for people who are female, 60+ old, also take Lyrica, and have Post herpetic neuralgia.

The phase IV clinical study analyzes which people have Formication when taking Armour thyroid. It is created by eHealthMe based on reports of 10,921 people who have side effects when taking Armour thyroid from the FDA, and is updated regularly.

What is Armour thyroid?

Armour thyroid has active ingredients of thyroid tablets, usp. It is often used in hypothyroidism. eHealthMe is studying from 11,970 Armour thyroid users. Check the latest studies of Armour thyroid.

What is Formication?

Formication (a sensation that exactly resembles that of small insects crawling on (or under) the skin) is found to be associated with 559 drugs and 916 conditions by eHealthMe. Check the latest studies of Formication.

On Nov, 28, 2025

10,921 people reported to have side effects when taking Armour thyroid.
Among them, 14 people (0.13%) have Formication.

Among these 14 people:

What is the gender of people who have Formication when taking Armour thyroid? *

female: 100 %
male: 0.0 %

What is the age of people who have Formication when taking Armour thyroid? *

What are other drugs people take besides Armour thyroid? *

What are other side effects people have besides Formication? *

Insomnia (sleeplessness): 6 people, 42.86%
Heart Palpitations (feelings or sensations that your heart is pounding or racing): 4 people, 28.57%
Stress And Anxiety: 4 people, 28.57%
Chills (felling of cold): 3 people, 21.43%
Weight Decreased: 3 people, 21.43%
Fatigue (feeling of tiredness): 3 people, 21.43%
Drug Ineffective: 3 people, 21.43%
Headache (pain in head): 2 people, 14.29%
Dyspnea (difficult or laboured breathing): 2 people, 14.29%
Dyskinesia (abnormality or impairment of voluntary movement): 2 people, 14.29%

What are the existing conditions these people have? *

Stress And Anxiety: 2 people, 14.29%
Atrial Fibrillation/flutter (atrial fibrillation and flutter are abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles): 2 people, 14.29%
Post Herpetic Neuralgia (neuralgia caused by the varicella zoster virus): 2 people, 14.29%
Infection: 1 person, 7.14%
Back Disorder: 1 person, 7.14%
Cardiac Disorder: 1 person, 7.14%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 1 person, 7.14%
Drowsiness: 1 person, 7.14%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 1 person, 7.14%
Hair Loss: 1 person, 7.14%

* Approximation only. Some reports may have incomplete information.

Do you take Armour thyroid and have Formication?

- Check whether Formication 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 Armour thyroid:

Armour thyroid (11,970 reports)

Formication treatments and more:

Formication (8,246 reports)

Browse all side effects of Armour thyroid:

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 Formication:

Formication (559 drugs)

Browse all the conditions that are associated with Formication:

Formication (916 conditions)

Drugs similar to Armour thyroid and Formication :

How the study uses the data?

The study uses data from the FDA. It is based on thyroid tablets, usp (the active ingredients of Armour thyroid) and Armour thyroid (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.