Cannabis and Bradyphrenia - a phase IV clinical study of FDA data

Summary:

Bradyphrenia is reported as a side effect among people who take Cannabis (marijuana), especially for people who are female, 20-29 old, have been taking the drug for < 1 month also take Valium, and have Depression.

The phase IV clinical study analyzes which people have Bradyphrenia when taking Cannabis. It is created by eHealthMe based on reports of 12,664 people who have side effects when taking Cannabis from the FDA, and is updated regularly.

What is Cannabis?

Cannabis has active ingredients of marijuana. It is often used in stress and anxiety. eHealthMe is studying from 13,371 Cannabis users. Check the latest studies of Cannabis.

What is Bradyphrenia?

Bradyphrenia (neurological term referring to the slowness of thought common to many disorders of the brain) is found to be associated with 528 drugs and 694 conditions by eHealthMe. Check the latest studies of Bradyphrenia.

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, 29, 2026

12,664 people reported to have side effects when taking Cannabis.
Among them, 13 people (0.1%) have Bradyphrenia.

Among these 13 people:

How long have people been on Cannabis when they have Bradyphrenia? *

What is the gender of people who have Bradyphrenia when taking Cannabis? *

female: 83.33 %
male: 16.67 %

What is the age of people who have Bradyphrenia when taking Cannabis? *

What are other drugs people take besides Cannabis? *

What are other side effects people have besides Bradyphrenia? *

Memory Loss: 4 people, 30.77%
Miosis (constriction of the pupil of the eye, resulting from a normal response to an increase in light): 4 people, 30.77%
Hypokinesia (decreased bodily movement): 3 people, 23.08%
Intentional Self-Injury: 3 people, 23.08%
Migraine (headache): 3 people, 23.08%
Sleep Disorder: 3 people, 23.08%
Dizziness: 3 people, 23.08%
Confusional State: 3 people, 23.08%
Wound Secretion: 2 people, 15.38%
Peripheral Swelling: 2 people, 15.38%

What are the existing conditions these people have? *

Depression: 3 people, 23.08%
Primary Pulmonary Hypertension (primary high blood pressure that affects the arteries in the lungs and the right side of your heart): 2 people, 15.38%
Migraine (headache): 2 people, 15.38%
Intentional Self-Injury: 2 people, 15.38%
Primary Myelofibrosis (primary disorder of the bone marrow): 1 person, 7.69%
Post Herpetic Neuralgia (neuralgia caused by the varicella zoster virus): 1 person, 7.69%
Polycythaemia Vera (blood disorder in which the bone marrow makes too many red blood cells): 1 person, 7.69%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 1 person, 7.69%
Depressive Symptom: 1 person, 7.69%
Agitation (state of anxiety or nervous excitement): 1 person, 7.69%

* Approximation only. Some reports may have incomplete information.

Do you take Cannabis and have Bradyphrenia?

- Check whether Bradyphrenia 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 Cannabis:

Cannabis (13,371 reports)

Bradyphrenia treatments and more:

Bradyphrenia (7,508 reports)

Browse all side effects of Cannabis:

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 Bradyphrenia:

Bradyphrenia (528 drugs)

Browse all the conditions that are associated with Bradyphrenia:

Bradyphrenia (694 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on marijuana (the active ingredients of Cannabis) and Cannabis (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.