Diphen and Telangiectasia - a phase IV clinical study of FDA data

Summary:

Telangiectasia is reported as a side effect among people who take Diphen (diphenhydramine hydrochloride), especially for people who are male, 50-59 old, have been taking the drug for < 1 month also take Prozac, and have Interstitial lung disease.

The phase IV clinical study analyzes which people have Telangiectasia when taking Diphen. It is created by eHealthMe based on reports of 113,958 people who have side effects when taking Diphen from the FDA, and is updated regularly.

What is Diphen?

Diphen has active ingredients of diphenhydramine hydrochloride. It is often used in insomnia. eHealthMe is studying from 115,432 Diphen users. Check the latest studies of Diphen.

What is Telangiectasia?

Telangiectasia (small dilated blood vessels near the surface of the skin) is found to be associated with 300 drugs and 369 conditions by eHealthMe. Check the latest studies of Telangiectasia.

On Jul, 18, 2026

113,958 people reported to have side effects when taking Diphen.
Among them, 33 people (0.03%) have Telangiectasia.

Among these 33 people:

How long have people been on Diphen when they have Telangiectasia? *

What is the gender of people who have Telangiectasia when taking Diphen? *

female: 50 %
male: 50 %

What is the age of people who have Telangiectasia when taking Diphen? *

What are other drugs people take besides Diphen? *

What are other side effects people have besides Telangiectasia? *

Pneumonia: 22 people, 66.67%
Dyspnea (difficult or laboured breathing): 20 people, 60.61%
Raynaud's Phenomenon (discoloration of the fingers, toes, and occasionally other areas): 20 people, 60.61%
Nausea And Vomiting: 18 people, 54.55%
Nausea (feeling of having an urge to vomit): 17 people, 51.52%
Ill-Defined Disorder: 17 people, 51.52%
Pleuritic Pain: 16 people, 48.48%
Oesophageal Dilatation (enlarged oesophagus): 16 people, 48.48%
Oesophageal Ulcer (ulcer of oesophagus): 16 people, 48.48%
Diastolic Dysfunction: 16 people, 48.48%

What are the existing conditions these people have? *

Interstitial Lung Disease: 16 people, 48.48%
Systemic Sclerosis (Scleroderma) (an autoimmune or connective tissue disease. it is characterized by thickening of the skin): 15 people, 45.45%
Raynaud's Phenomenon (discoloration of the fingers, toes, and occasionally other areas): 11 people, 33.33%
Immunodeficiency Common Variable: 6 people, 18.18%
Crohn's Disease (a condition that causes inflammation of the gastrointestinal tract): 5 people, 15.15%
Migraine Without Aura (headache without neurological problems): 3 people, 9.09%
Migraine (headache): 3 people, 9.09%
Nausea (feeling of having an urge to vomit): 1 person, 3.03%
Lung Neoplasm Malignant (cancer tumour of lung): 1 person, 3.03%
Lung Cancer - Non-Small Cell (lung cancer): 1 person, 3.03%

* Approximation only. Some reports may have incomplete information.

Do you take Diphen and have Telangiectasia?

- Check whether Telangiectasia 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 Diphen:

Diphen (115,432 reports)

Telangiectasia treatments and more:

Telangiectasia (1,283 reports)

Browse all side effects of Diphen:

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 Telangiectasia:

Telangiectasia (300 drugs)

Browse all the conditions that are associated with Telangiectasia:

Telangiectasia (369 conditions)

How the study uses the data?

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