Coreg and Formication - a phase IV clinical study of FDA data

Summary:

Formication is reported as a side effect among people who take Coreg (carvedilol), especially for people who are female, 60+ old, also take Levemir, and have Chronic myeloid leukaemia.

The phase IV clinical study analyzes which people have Formication when taking Coreg. It is created by eHealthMe based on reports of 48,155 people who have side effects when taking Coreg from the FDA, and is updated regularly.

What is Coreg?

Coreg has active ingredients of carvedilol. It is often used in high blood pressure. eHealthMe is studying from 49,580 Coreg users. Check the latest studies of Coreg.

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 560 drugs and 915 conditions by eHealthMe. Check the latest studies of Formication.

On Dec, 09, 2025

48,155 people reported to have side effects when taking Coreg.
Among them, 16 people (0.03%) have Formication.

Among these 16 people:

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

female: 73.33 %
male: 26.67 %

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

What are other drugs people take besides Coreg? *

What are other side effects people have besides Formication? *

Itching: 5 people, 31.25%
Skin Blushing/flushing (a sudden reddening of the face, neck): 5 people, 31.25%
Nausea (feeling of having an urge to vomit): 4 people, 25.00%
Rashes (redness): 3 people, 18.75%
Tremor (trembling or shaking movements in one or more parts of your body): 3 people, 18.75%
Thrombocytopenia (decrease of platelets in blood): 3 people, 18.75%
Skin Hypertrophy (skin cells enlarges): 3 people, 18.75%
Withdrawal Syndrome (a discontinuation syndrome is a set of symptoms occurred due to discontinuation of substance): 2 people, 12.50%
Drug Hypersensitivity: 2 people, 12.50%
Crying: 2 people, 12.50%

What are the existing conditions these people have? *

Chronic Myeloid Leukaemia (long lasting type of cancer that starts in the blood-forming cells of the bone marrow and invades the blood): 3 people, 18.75%
Polymyalgia Rheumatica (pain in many muscles): 2 people, 12.50%
Neuropathy Peripheral (surface nerve damage): 2 people, 12.50%
Primary Pulmonary Hypertension (primary high blood pressure that affects the arteries in the lungs and the right side of your heart): 1 person, 6.25%
Mononeuropathy (a type of damage to nerves outside the brain and spinal cord): 1 person, 6.25%
Major Depression (a mood state that goes well beyond temporarily feeling sad or blue. it is a serious medical illness that affects one's thoughts, feelings): 1 person, 6.25%
High Blood Cholesterol: 1 person, 6.25%
Herpes Zoster: 1 person, 6.25%
Fluid Retention (an abnormal accumulation of fluid in the blood): 1 person, 6.25%
Fibromyalgia (a long-term condition which causes pain all over the body): 1 person, 6.25%

* Approximation only. Some reports may have incomplete information.

Do you take Coreg and have Formication?

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Related studies:

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

Coreg (49,580 reports)

Formication treatments and more:

Formication (8,246 reports)

Browse all side effects of Coreg:

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 (560 drugs)

Browse all the conditions that are associated with Formication:

Formication (915 conditions)

Drugs similar to Coreg and Formication :

Related publications that referenced our studies

Barold, S. S., & Upton, S. , "Hyperkalemia Induced by the Sequential Administration of Metoprolol and Carvedilol", Case reports in cardiology, 2018 Jan .
Kim MS, Baek IH, "Effect of dronedarone on the pharmacokinetics of carvedilol following oral administration to rats", European Journal of Pharmaceutical Sciences, 2018 Jan .
Barold, S. S., & Upton, S. , "Hyperkalemia Induced by the Sequential Administration of Metoprolol and Carvedilol", Case reports in cardiology, 2018 Jan .
Kim MS, Baek IH, "Effect of dronedarone on the pharmacokinetics of carvedilol following oral administration to rats", European Journal of Pharmaceutical Sciences, 2018 Jan .

How the study uses the data?

The study uses data from the FDA. It is based on carvedilol (the active ingredients of Coreg) and Coreg (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.