Donepezil and Erythema multiforme - a phase IV clinical study of FDA data

Summary:

Erythema multiforme is reported as a side effect among people who take Donepezil (donepezil hydrochloride), especially for people who are male, 60+ old, have been taking the drug for < 1 month also take Promethazine, and have High blood pressure.

The phase IV clinical study analyzes which people have Erythema multiforme when taking Donepezil. It is created by eHealthMe based on reports of 24,262 people who have side effects when taking Donepezil from the FDA, and is updated regularly.

What is Donepezil?

Donepezil has active ingredients of donepezil hydrochloride. It is often used in dementia. eHealthMe is studying from 24,564 Donepezil users. Check the latest studies of Donepezil.

What is Erythema multiforme?

Erythema multiforme (a type of hypersensitivity reaction) is found to be associated with 1,699 drugs and 2,922 conditions by eHealthMe. Check the latest studies of Erythema multiforme.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Aug, 02, 2026

24,262 people reported to have side effects when taking Donepezil.
Among them, 64 people (0.26%) have Erythema multiforme.

Could Donepezil cause Erythema multiforme?

Among these 64 people:

How long have people been on Donepezil when they have Erythema multiforme? *

What is the gender of people who have Erythema multiforme when taking Donepezil? *

female: 47.46 %
male: 52.54 %

What is the age of people who have Erythema multiforme when taking Donepezil? *

What are other drugs people take besides Donepezil? *

What are other side effects people have besides Erythema multiforme? *

Rashes (redness): 16 people, 25.00%
Dermatitis Bullous (inflammation of the skin characterized by the presence of bullae which are filled with fluid): 12 people, 18.75%
Lower Respiratory Tract Infection: 11 people, 17.19%
Rash Macular (small, flat red spots): 11 people, 17.19%
Mucosal Haemorrhage (bleeding from mucous membrane): 11 people, 17.19%
Skin Swelling: 11 people, 17.19%
Dermatitis Allergic (inflammation of the skin due allergic reaction): 11 people, 17.19%
Sepsis (a severe blood infection that can lead to organ failure and death): 10 people, 15.62%
Hypersensitivity: 5 people, 7.81%
Fever: 2 people, 3.12%

What are the existing conditions these people have? *

Parkinson's Disease: 14 people, 21.88%
High Blood Pressure: 14 people, 21.88%
Urination - Excessive Volume: 12 people, 18.75%
Hyperuricaemia (level of uric acid in the blood that is abnormally high): 12 people, 18.75%
Lower Respiratory Tract Infection: 11 people, 17.19%
Fever: 10 people, 15.62%
Gastrointestinal Haemorrhage (bleeding gastrointestinal tract): 10 people, 15.62%
Epilepsy (common and diverse set of chronic neurological disorders characterized by seizures): 3 people, 4.69%
Central Nervous System Lymphoma (cancer of central nervous system forms in lymph tissue): 2 people, 3.12%
Constipation: 2 people, 3.12%

* Approximation only. Some reports may have incomplete information.

Do you take Donepezil and have Erythema multiforme?

- Check whether Erythema multiforme 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 Donepezil:

Donepezil (24,564 reports)

Browse all side effects of Donepezil:

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 Erythema multiforme:

Erythema multiforme (1,699 drugs)

Browse all the conditions that are associated with Erythema multiforme:

Erythema multiforme (2,922 conditions)

Related publications that referenced our studies

Tognetti L, Giorgini S, Lotti T, "Erythema multiforme-like eruption from a slimming drug preparation cutaneous adverse drug reaction", Indian dermatology online journal, 2011 Jan .
Tognetti L, Giorgini S, Lotti T, "Erythema multiforme-like eruption from a slimming drug preparation cutaneous adverse drug reaction", Indian dermatology online journal, 2011 Jan .

How the study uses the data?

The study uses data from the FDA. It is based on donepezil hydrochloride (the active ingredients of Donepezil) and Donepezil (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.