Vitamin d and Speech disorder - a phase IV clinical study of FDA data

Summary:

Speech disorder is reported as a side effect among people who take Vitamin d (ergocalciferol), especially for people who are female, 60+ old, have been taking the drug for 1 - 2 years also take Vitamin B12, and have Multiple sclerosis.

The phase IV clinical study analyzes which people have Speech disorder when taking Vitamin d. It is created by eHealthMe based on reports of 282,675 people who have side effects when taking Vitamin d from the FDA, and is updated regularly.

What is Vitamin d?

Vitamin d has active ingredients of ergocalciferol. It is often used in low vitamin d. eHealthMe is studying from 294,083 Vitamin d users. Check the latest studies of Vitamin d.

What is Speech disorder?

Speech disorder is found to be associated with 1,820 drugs and 2,268 conditions by eHealthMe. Check the latest studies of Speech disorder.



On Feb, 07, 2026

282,675 people reported to have side effects when taking Vitamin d.
Among them, 1,356 people (0.48%) have Speech disorder.

Could Vitamin d cause Speech disorder?

Among these 1,356 people:

How long have people been on Vitamin d when they have Speech disorder? *

What is the gender of people who have Speech disorder when taking Vitamin d? *

Click here to view

What is the age of people who have Speech disorder when taking Vitamin d? *

What are other drugs people take besides Vitamin d? *

Click here to view

What are other side effects people have besides Speech disorder? *

Click here to view

What are the existing conditions these people have? *

Click here to view

* Approximation only. Some reports may have incomplete information.

Do you take Vitamin d and have Speech disorder?

- Check whether Speech disorder 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 d:

Speech disorder treatments and more:

How severe was Speech disorder and when was it recovered:

Expand to all the drugs that have ingredients of ergocalciferol:

Sub-studies by gender and age:

Female: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Male: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Common Vitamin d side effects:

Browse all side effects of Vitamin d:

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

Common drugs associated with Speech disorder:

Browse all the drugs that are associated with Speech disorder:

Common conditions associated with Speech disorder:

Browse all the conditions that are associated with Speech disorder:

Related publications that referenced our studies


How the study uses the data?

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



Recent studies on eHealthMe: