Hydramine and Hypertensive emergency - a phase IV clinical study of FDA data

Summary:

Hypertensive emergency is reported as a side effect among people who take Hydramine (diphenhydramine hydrochloride), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Ondansetron, and have Stress and anxiety.

The phase IV clinical study analyzes which people have Hypertensive emergency when taking Hydramine. It is created by eHealthMe based on reports of 113,450 people who have side effects when taking Hydramine from the FDA, and is updated regularly.

What is Hydramine?

Hydramine has active ingredients of diphenhydramine hydrochloride. It is often used in insomnia. eHealthMe is studying from 114,900 Hydramine users. Check the latest studies of Hydramine.

What is Hypertensive emergency?

Hypertensive emergency is found to be associated with 133 drugs and 257 conditions by eHealthMe. Check the latest studies of Hypertensive emergency.

On Jul, 17, 2026

113,450 people reported to have side effects when taking Hydramine.
Among them, 11 people (0.01%) have Hypertensive emergency.

Could Hydramine cause Hypertensive emergency?

Among these 11 people:

How long have people been on Hydramine when they have Hypertensive emergency? *

What is the gender of people who have Hypertensive emergency when taking Hydramine? *

female: 90 %
male: 10 %

What is the age of people who have Hypertensive emergency when taking Hydramine? *

What are other drugs people take besides Hydramine? *

Ondansetron: 6 people, 54.55%
Amlodipine: 4 people, 36.36%
Clonidine: 4 people, 36.36%
Yohimbine: 3 people, 27.27%
Desvenlafaxine: 3 people, 27.27%
Famotidine: 3 people, 27.27%
Levonorgestrel: 3 people, 27.27%
Myfortic: 2 people, 18.18%
Bumex: 2 people, 18.18%
Bupropion Hydrochloride: 2 people, 18.18%

What are other side effects people have besides Hypertensive emergency? *

Sympathomimetic Effect (substances that mimic the effects of the hormone epinephrine (adrenaline): 3 people, 27.27%
High Blood Pressure: 3 people, 27.27%
Hypokalemia (low potassium): 2 people, 18.18%
Pulmonary Alveolar Haemorrhage (acute bleeding): 2 people, 18.18%
Hallucinations (sensations that appear real but are created by your mind): 2 people, 18.18%
Haemoglobin Decreased: 2 people, 18.18%
Leukopenia (less number of white blood cells in blood): 2 people, 18.18%
Loss Of Consciousness: 2 people, 18.18%
Dyspnea (difficult or laboured breathing): 2 people, 18.18%
Dehydration (dryness resulting from the removal of water): 2 people, 18.18%

What are the existing conditions these people have? *

Stress And Anxiety: 3 people, 27.27%
Stomatitis (inflammation of mucous membrane of mouth): 2 people, 18.18%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 2 people, 18.18%
Lupus Nephritis (a chronic inflammatory autoimmune disorder that may affect kidney tissue): 2 people, 18.18%
High Blood Pressure: 2 people, 18.18%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 2 people, 18.18%
Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 1 person, 9.09%
Ovarian Cancer (cancer of ovary): 1 person, 9.09%
Lung Cancer - Small Cell (lung cancer): 1 person, 9.09%
Itching: 1 person, 9.09%

* Approximation only. Some reports may have incomplete information.

Do you take Hydramine and have Hypertensive emergency?

- Check whether Hypertensive emergency 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 Hydramine:

Hydramine (114,900 reports)

Browse all side effects of Hydramine:

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 Hypertensive emergency:

Hypertensive emergency (133 drugs)

Browse all the conditions that are associated with Hypertensive emergency:

Hypertensive emergency (257 conditions)

How the study uses the data?

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