Vilazodone hydrochloride and Drowsiness - a phase IV clinical study of FDA data

Summary:

Drowsiness is reported as a side effect among people who take Vilazodone hydrochloride (vilazodone hydrochloride), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Vitamin D, and have Depression.

The phase IV clinical study analyzes which people have Drowsiness when taking Vilazodone hydrochloride. It is created by eHealthMe based on reports of 601 people who have side effects when taking Vilazodone hydrochloride from the FDA, and is updated regularly.

What is Vilazodone hydrochloride?

Vilazodone hydrochloride has active ingredients of vilazodone hydrochloride. eHealthMe is studying from 665 Vilazodone hydrochloride users. Check the latest studies of Vilazodone hydrochloride.

What is Drowsiness?

Drowsiness is found to be associated with 2,864 drugs and 4,800 conditions by eHealthMe. Check the latest studies of Drowsiness.

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, 27, 2026

601 people reported to have side effects when taking Vilazodone hydrochloride.
Among them, 24 people (3.99%) have Drowsiness.

Could Vilazodone hydrochloride cause Drowsiness?

Among these 24 people:

How long have people been on Vilazodone hydrochloride when they have Drowsiness? *

What is the gender of people who have Drowsiness when taking Vilazodone hydrochloride? *

female: 73.91 %
male: 26.09 %

What is the age of people who have Drowsiness when taking Vilazodone hydrochloride? *

What are other drugs people take besides Vilazodone hydrochloride? *

Vitamin D: 4 people, 16.67%
Viibryd: 3 people, 12.50%
Modafinil: 2 people, 8.33%
Naltrexone Hydrochloride: 2 people, 8.33%
Ciprofloxacin: 2 people, 8.33%
Folic Acid: 2 people, 8.33%
Lamotrigine: 2 people, 8.33%
Xyrem: 2 people, 8.33%
Multivitamin: 2 people, 8.33%
Alprazolam: 2 people, 8.33%

What are other side effects people have besides Drowsiness? *

Fatigue (feeling of tiredness): 8 people, 33.33%
Nausea (feeling of having an urge to vomit): 7 people, 29.17%
Feeling Abnormal: 6 people, 25.00%
Weight Decreased: 6 people, 25.00%
High Blood Pressure: 6 people, 25.00%
Headache (pain in head): 6 people, 25.00%
Stress And Anxiety: 5 people, 20.83%
Middle Insomnia (difficulty returning to sleep after awakening either in the middle of the night): 3 people, 12.50%
Memory Loss: 3 people, 12.50%
Insomnia (sleeplessness): 3 people, 12.50%

What are the existing conditions these people have? *

Depression: 11 people, 45.83%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 4 people, 16.67%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 4 people, 16.67%
Stress And Anxiety: 3 people, 12.50%
Major Depression (a mood state that goes well beyond temporarily feeling sad or blue. it is a serious medical illness that affects one's thoughts, feelings): 2 people, 8.33%
Insomnia (sleeplessness): 2 people, 8.33%
Diarrhea: 2 people, 8.33%
Bipolar Disorder (mood disorder): 2 people, 8.33%
Thyroid Diseases: 1 person, 4.17%
Post-Traumatic Stress Disorder: 1 person, 4.17%

* Approximation only. Some reports may have incomplete information.

Do you take Vilazodone hydrochloride and have Drowsiness?

- Check whether Drowsiness 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 Vilazodone hydrochloride:

Vilazodone hydrochloride (665 reports)

Drowsiness treatments and more:

Drowsiness (269,040 reports)

Browse all side effects of Vilazodone hydrochloride:

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 Drowsiness:

Drowsiness (2,864 drugs)

Browse all the conditions that are associated with Drowsiness:

Drowsiness (4,800 conditions)

How the study uses the data?

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