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

Summary:

Formication is reported as a side effect among people who take Celexa (citalopram hydrobromide), especially for people who are female, 50-59 old, have been taking the drug for 6 - 12 months also take Benadryl, and have Pain.

The phase IV clinical study analyzes which people have Formication when taking Celexa. It is created by eHealthMe based on reports of 49,596 people who have side effects when taking Celexa from the FDA, and is updated regularly.

What is Celexa?

Celexa has active ingredients of citalopram hydrobromide. It is often used in depression. eHealthMe is studying from 56,387 Celexa users. Check the latest studies of Celexa.

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

On Jan, 04, 2026

49,596 people reported to have side effects when taking Celexa.
Among them, 47 people (0.09%) have Formication.

Among these 47 people:

How long have people been on Celexa when they have Formication? *

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

female: 51.11 %
male: 48.89 %

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

What are other drugs people take besides Celexa? *

What are other side effects people have besides Formication? *

Pain: 12 people, 25.53%
Feeling Abnormal: 12 people, 25.53%
Fatigue (feeling of tiredness): 11 people, 23.40%
Insomnia (sleeplessness): 11 people, 23.40%
Disturbance In Attention: 10 people, 21.28%
Itching: 9 people, 19.15%
Headache (pain in head): 9 people, 19.15%
Nausea (feeling of having an urge to vomit): 9 people, 19.15%
Drowsiness: 8 people, 17.02%
Withdrawal Syndrome (a discontinuation syndrome is a set of symptoms occurred due to discontinuation of substance): 8 people, 17.02%

What are the existing conditions these people have? *

Pain: 7 people, 14.89%
Quit Smoking: 6 people, 12.77%
High Blood Pressure: 4 people, 8.51%
Crohn's Disease (a condition that causes inflammation of the gastrointestinal tract): 3 people, 6.38%
Sleep Disorder: 3 people, 6.38%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 3 people, 6.38%
Diabetes: 3 people, 6.38%
Hepatitis C: 2 people, 4.26%
Nerve Injury: 2 people, 4.26%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 2 people, 4.26%

* Approximation only. Some reports may have incomplete information.

Do you take Celexa and have Formication?

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Related studies:

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

Celexa (56,387 reports)

Formication treatments and more:

Formication (8,246 reports)

Browse all side effects of Celexa:

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 (561 drugs)

Browse all the conditions that are associated with Formication:

Formication (915 conditions)

Drugs similar to Celexa and Formication :

Related publications that referenced our studies

Hosseini, S. H., & Ahmadi, A., "Peripheral edema occurring during treatment with risperidone combined with citalopram", Case reports in medicine, 2012 Jan .
Hosseini, S. H., & Ahmadi, A., "Peripheral edema occurring during treatment with risperidone combined with citalopram", Case reports in medicine, 2012 Jan .

How the study uses the data?

The study uses data from the FDA. It is based on citalopram hydrobromide (the active ingredients of Celexa) and Celexa (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.