Viibryd and Delirium - a phase IV clinical study of FDA data

Summary:

Delirium is reported as a side effect among people who take Viibryd (vilazodone hydrochloride), especially for people who are female, 60+ old, have been taking the drug for 1 - 6 months also take Vitamin D, and have Hypogammaglobulinaemia.

The phase IV clinical study analyzes which people have Delirium when taking Viibryd. It is created by eHealthMe based on reports of 10,186 people who have side effects when taking Viibryd from the FDA, and is updated regularly.

What is Viibryd?

Viibryd has active ingredients of vilazodone hydrochloride. It is often used in depression. eHealthMe is studying from 11,106 Viibryd users. Check the latest studies of Viibryd.

What is Delirium?

Delirium (wild excitement) is found to be associated with 1,469 drugs and 2,973 conditions by eHealthMe. Check the latest studies of Delirium.



On Apr, 24, 2026

10,186 people reported to have side effects when taking Viibryd.
Among them, 17 people (0.17%) have Delirium.

Could Viibryd cause Delirium?

Among these 17 people:

How long have people been on Viibryd when they have Delirium? *

  • < 1 month: 25 %
  • 1 - 6 months: 75 %
  • 6 - 12 months: 0.0 %
  • 1 - 2 years: 0.0 %
  • 2 - 5 years: 0.0 %
  • 5 - 10 years: 0.0 %
  • 10+ years: 0.0 %

What is the gender of people who have Delirium when taking Viibryd? *

  • female: 52.94 %
  • male: 47.06 %

What is the age of people who have Delirium when taking Viibryd? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 28.57 %
  • 30-39: 0.0 %
  • 40-49: 14.29 %
  • 50-59: 14.29 %
  • 60+: 42.86 %

What are other drugs people take besides Viibryd? *

  1. Vitamin D: 6 people, 35.29%
  2. Acetaminophen: 5 people, 29.41%
  3. Epinephrine: 5 people, 29.41%
  4. Nabumetone: 5 people, 29.41%
  5. Patanol: 5 people, 29.41%
  6. Lasix: 5 people, 29.41%
  7. Propranolol Hydrochloride: 5 people, 29.41%
  8. Injectafer: 5 people, 29.41%
  9. Seroquel: 5 people, 29.41%
  10. Cetirizine Hydrochloride: 5 people, 29.41%

What are other side effects people have besides Delirium? *

  1. Malaise (a feeling of general discomfort or uneasiness): 6 people, 35.29%
  2. Heart Palpitations (feelings or sensations that your heart is pounding or racing): 6 people, 35.29%
  3. Spinal Fracture (fracture in one of vertebrae): 5 people, 29.41%
  4. Haematoma (collection of blood outside the blood vessels): 5 people, 29.41%
  5. Migraine (headache): 5 people, 29.41%
  6. Gastroenteritis (inflammation of stomach and intestine): 5 people, 29.41%
  7. Fatigue (feeling of tiredness): 5 people, 29.41%
  8. Fall: 5 people, 29.41%
  9. Peripheral Swelling: 5 people, 29.41%
  10. Postural Orthostatic Tachycardia Syndrome (abnormal increase in heart rate on becoming upright): 5 people, 29.41%

What are the existing conditions these people have? *

  1. Primary Immunodeficiency Syndrome: 5 people, 29.41%
  2. Immunodeficiency: 5 people, 29.41%
  3. Hypogammaglobulinaemia (an abnormally low concentration of gamma globulin in the blood and increased risk of infection): 5 people, 29.41%
  4. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 3 people, 17.65%
  5. Headache (pain in head): 2 people, 11.76%
  6. Post-Traumatic Stress Disorder: 1 person, 5.88%
  7. Insomnia (sleeplessness): 1 person, 5.88%
  8. High Blood Cholesterol: 1 person, 5.88%
  9. Cataplexy (loss of muscle tone accompanied by full conscious awareness): 1 person, 5.88%
  10. Bronchitis (inflammation of the mucous membrane in the bronchial tubes): 1 person, 5.88%

* Approximation only. Some reports may have incomplete information.

Do you take Viibryd and have Delirium?

- Check whether Delirium 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 Viibryd:

Delirium treatments and more:

How severe was Delirium and when was it recovered:

Expand to all the drugs that have ingredients of vilazodone hydrochloride:

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+

Browse all side effects of Viibryd:

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 Delirium:

Browse all the conditions that are associated with Delirium:


How the study uses the data?

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



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