Vitamin b12 and Hallucinations, mixed - a phase IV clinical study of FDA data

Summary:

Hallucinations, mixed is reported as a side effect among people who take Vitamin b12 (cobalamin), especially for people who are male, 60+ old, have been taking the drug for 10+ years also take Nuplazid, and have Hallucinations.

The phase IV clinical study analyzes which people have Hallucinations, mixed when taking Vitamin b12. It is created by eHealthMe based on reports of 119,611 people who have side effects when taking Vitamin b12 from the FDA, and is updated regularly.

What is Vitamin b12?

Vitamin b12 has active ingredients of cobalamin. It is often used in vitamin b12 deficiency. eHealthMe is studying from 121,681 Vitamin b12 users. Check the latest studies of Vitamin b12.

What is Hallucinations, mixed?

Hallucinations, mixed (sensations that appear real but are created by your mind -mixed) is found to be associated with 410 drugs and 595 conditions by eHealthMe. Check the latest studies of Hallucinations, mixed.

On Jul, 19, 2026

119,611 people reported to have side effects when taking Vitamin b12.
Among them, 32 people (0.03%) have Hallucinations, mixed.

Could Vitamin b12 cause Hallucinations, mixed?

Among these 32 people:

How long have people been on Vitamin b12 when they have Hallucinations, mixed? *

What is the gender of people who have Hallucinations, mixed when taking Vitamin b12? *

female: 45.16 %
male: 54.84 %

What is the age of people who have Hallucinations, mixed when taking Vitamin b12? *

What are other drugs people take besides Vitamin b12? *

What are other side effects people have besides Hallucinations, mixed? *

Confusional State: 11 people, 34.38%
Hallucinations (sensations that appear real but are created by your mind): 11 people, 34.38%
Fall: 8 people, 25.00%
Tremor (trembling or shaking movements in one or more parts of your body): 8 people, 25.00%
Stress And Anxiety: 7 people, 21.88%
Gait Disturbance: 7 people, 21.88%
Hypotension (abnormally low blood pressure): 5 people, 15.62%
Dizziness: 5 people, 15.62%
Disturbance In Attention: 5 people, 15.62%
Balance Disorder: 5 people, 15.62%

What are the existing conditions these people have? *

Delusion (a false belief or opinion): 9 people, 28.12%
Hallucinations (sensations that appear real but are created by your mind): 9 people, 28.12%
Parkinson's Disease: 8 people, 25.00%
Heart Disease: 3 people, 9.38%
Stress And Anxiety: 2 people, 6.25%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 2 people, 6.25%
Primary Pulmonary Hypertension (primary high blood pressure that affects the arteries in the lungs and the right side of your heart): 2 people, 6.25%
Constipation: 2 people, 6.25%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 2 people, 6.25%
Dementia (madness): 2 people, 6.25%

* Approximation only. Some reports may have incomplete information.

Do you take Vitamin b12 and have Hallucinations, mixed?

- Check whether Hallucinations, mixed 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 Vitamin b12:

Vitamin b12 (121,681 reports)

Browse all side effects of Vitamin b12:

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 Hallucinations, mixed:

Hallucinations, mixed (410 drugs)

Browse all the conditions that are associated with Hallucinations, mixed:

Hallucinations, mixed (595 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on cobalamin (the active ingredients of Vitamin b12) and Vitamin b12 (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.