Calan and Memory loss - a phase IV clinical study of FDA data

Summary:

Memory loss is reported as a side effect among people who take Calan (verapamil hydrochloride), especially for people who are female, 60+ old, also take Synthroid, and have Thyroid diseases.

The phase IV clinical study analyzes which people have Memory loss 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 Memory loss?

Memory loss is found to be associated with 2,728 drugs and 4,375 conditions by eHealthMe. Check the latest studies of Memory loss.

On Jul, 18, 2026

3,791 people reported to have side effects when taking Calan.
Among them, 62 people (1.64%) have Memory loss.

Among these 62 people:

What is the gender of people who have Memory loss when taking Calan? *

female: 81.67 %
male: 18.33 %

What is the age of people who have Memory loss when taking Calan? *

What are other drugs people take besides Calan? *

What are other side effects people have besides Memory loss? *

Weakness: 13 people, 20.97%
Headache (pain in head): 13 people, 20.97%
Stress And Anxiety: 10 people, 16.13%
Pain: 9 people, 14.52%
Femur Fracture: 9 people, 14.52%
Fatigue (feeling of tiredness): 9 people, 14.52%
Depression: 9 people, 14.52%
Speech Disorder: 9 people, 14.52%
Stroke (sudden death of a portion of the brain cells due to a lack of oxygen): 9 people, 14.52%
Gait Disturbance: 9 people, 14.52%

What are the existing conditions these people have? *

Thyroid Diseases: 9 people, 14.52%
Hiatal Hernia (hernia resulting from the protrusion of part of the stomach through the diaphragm): 8 people, 12.90%
Heart Rate Increased: 8 people, 12.90%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 6 people, 9.68%
Gait Disturbance: 4 people, 6.45%
Stress And Anxiety: 3 people, 4.84%
Sleep Disorder: 3 people, 4.84%
Headache (pain in head): 3 people, 4.84%
Insomnia (sleeplessness): 2 people, 3.23%
Affective Disorder (mental disorder): 2 people, 3.23%

* Approximation only. Some reports may have incomplete information.

Do you take Calan and have Memory loss?

- Check whether Memory loss 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)

Memory loss treatments and more:

Memory loss (244,444 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 Memory loss:

Memory loss (2,728 drugs)

Browse all the conditions that are associated with Memory loss:

Memory loss (4,375 conditions)

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.