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Gravol and Abnormal behavior - a phase IV clinical study of FDA data

Summary:

Abnormal behavior is reported as a side effect among people who take Gravol (dimenhydrinate), especially for people who are male, 50-59 old, also take Melatonin, and have Crohn's disease.

The phase IV clinical study analyzes which people have Abnormal behavior when taking Gravol. It is created by eHealthMe based on reports of 6,796 people who have side effects when taking Gravol from the FDA, and is updated regularly.

What is Gravol?

Gravol has active ingredients of dimenhydrinate. It is often used in nausea. eHealthMe is studying from 7,192 Gravol users. Check the latest studies of Gravol.

What is Abnormal behavior?

Abnormal behavior is found to be associated with 1,366 drugs and 1,948 conditions by eHealthMe. Check the latest studies of Abnormal behavior.

On Jul, 13, 2026

6,796 people reported to have side effects when taking Gravol.
Among them, 12 people (0.18%) have Abnormal behavior.

Could Gravol cause Abnormal behavior?

Among these 12 people:

What is the gender of people who have Abnormal behavior when taking Gravol? *

  • female: 33.33 %
  • male: 66.67 %

What is the age of people who have Abnormal behavior when taking Gravol? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 16.67 %
  • 30-39: 0.0 %
  • 40-49: 16.67 %
  • 50-59: 66.67 %
  • 60+: 0.0 %

What are other drugs people take besides Gravol? *

  1. Melatonin: 9 people, 75.00%
  2. Tylenol: 7 people, 58.33%
  3. Inflectra: 5 people, 41.67%
  4. Ondansetron: 4 people, 33.33%
  5. Remicade: 3 people, 25.00%
  6. Ferrous Fumarate: 2 people, 16.67%
  7. Amoxicillin And Clavulanate Potassium: 2 people, 16.67%
  8. Asacol: 2 people, 16.67%
  9. Prednisone: 2 people, 16.67%
  10. Dilaudid: 2 people, 16.67%

What are other side effects people have besides Abnormal behavior? *

  1. Weight Decreased: 9 people, 75.00%
  2. Inflammatory Marker Increased: 9 people, 75.00%
  3. Abdominal Pain Lower: 9 people, 75.00%
  4. Abdominal Tenderness: 9 people, 75.00%
  5. Appetite - Increased (increased appetite is when you want to eat much more often or in larger quantities than your body requires): 9 people, 75.00%
  6. Bowel Movement Irregularity: 9 people, 75.00%
  7. Cough: 9 people, 75.00%
  8. Dyspnea (difficult or laboured breathing): 9 people, 75.00%
  9. Enterocolonic Fistula: 9 people, 75.00%
  10. Fever: 9 people, 75.00%

What are the existing conditions these people have? *

  1. Crohn's Disease (a condition that causes inflammation of the gastrointestinal tract): 8 people, 66.67%
  2. Ulcerative Colitis (inflammatory bowel disease (ibd). it causes swelling, ulcerations, and loss of function of the large intestine): 3 people, 25.00%

* Approximation only. Some reports may have incomplete information.

Do you take Gravol and have Abnormal behavior?

- Check whether Abnormal behavior 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 Gravol:

Abnormal behavior treatments and more:

How severe was Abnormal behavior and when was it recovered:

Expand to all the drugs that have ingredients of dimenhydrinate:

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 Gravol:

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 Abnormal behavior:

Browse all the conditions that are associated with Abnormal behavior:

How the study uses the data?

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