Calan and Drug toxicity - a phase IV clinical study of FDA data

Summary:

Drug toxicity is reported as a side effect among people who take Calan (verapamil hydrochloride), especially for people who are female, 60+ old, also take Zyprexa, and have Ill-defined disorder.

The phase IV clinical study analyzes which people have Drug toxicity when taking Calan. It is created by eHealthMe based on reports of 3,791 people who have side effects when taking Calan from the FDA, and is updated regularly.

What is Calan?

Calan has active ingredients of verapamil hydrochloride. It is often used in high blood pressure. eHealthMe is studying from 3,916 Calan users. Check the latest studies of Calan.

What is Drug toxicity?

Drug toxicity is found to be associated with 986 drugs and 1,385 conditions by eHealthMe. Check the latest studies of Drug toxicity.

On Jul, 13, 2026

3,791 people reported to have side effects when taking Calan.
Among them, 17 people (0.45%) have Drug toxicity.

Among these 17 people:

What is the gender of people who have Drug toxicity when taking Calan? *

female: 85.71 %
male: 14.29 %

What is the age of people who have Drug toxicity when taking Calan? *

What are other drugs people take besides Calan? *

What are other side effects people have besides Drug toxicity? *

Completed Suicide (act of taking one's own life): 10 people, 58.82%
Multiple Drug Overdose: 6 people, 35.29%
Overdose: 5 people, 29.41%
Acute Kidney Failure: 2 people, 11.76%
Alcoholism (problems with alcohol): 2 people, 11.76%
Heart Attack: 2 people, 11.76%
Cardiac Arrest: 2 people, 11.76%
Gastrointestinal Perforation (hole in the digestive tract): 1 person, 5.88%
Gastrointestinal Haemorrhage (bleeding gastrointestinal tract): 1 person, 5.88%
Gastric Haemorrhage (bleeding stomach): 1 person, 5.88%

What are the existing conditions these people have? *

Ill-Defined Disorder: 9 people, 52.94%
Mydriasis (a dilation of the pupil): 1 person, 5.88%
Headache (pain in head): 1 person, 5.88%
Dementia (madness): 1 person, 5.88%

* Approximation only. Some reports may have incomplete information.

Do you take Calan and have Drug toxicity?

- Check whether Drug toxicity 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 Calan:

Calan (3,916 reports)

Drug toxicity treatments and more:

Drug toxicity (20,259 reports)

Browse all side effects of Calan:

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 Drug toxicity:

Drug toxicity (986 drugs)

Browse all the conditions that are associated with Drug toxicity:

Drug toxicity (1,385 conditions)

Related publications that referenced our studies

Wandalkar P, Daswani BR, Pandit PT, Ghongane BB, "A case of Phenytoin toxicity", INTERNATIONAL JOURNAL OF ADVANCES IN PHARMACY, BIOLOGY AND CHEMISTRY, 2014 Jan .
Wandalkar P, Daswani BR, Pandit PT, Ghongane BB, "A case of Phenytoin toxicity", INTERNATIONAL JOURNAL OF ADVANCES IN PHARMACY, BIOLOGY AND CHEMISTRY, 2014 Jan .

How the study uses the data?

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