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Vyvanse and Ill-defined disorder - a phase IV clinical study of FDA data

Summary:

Ill-defined disorder is reported as a side effect among people who take Vyvanse (lisdexamfetamine dimesylate), especially for people who are female, 30-39 old, have been taking the drug for 1 - 6 months also take Methotrexate, and have Affective disorder.

The phase IV clinical study analyzes which people have Ill-defined disorder when taking Vyvanse. It is created by eHealthMe based on reports of 28,083 people who have side effects when taking Vyvanse from the FDA, and is updated regularly.

What is Vyvanse?

Vyvanse has active ingredients of lisdexamfetamine dimesylate. It is often used in attention deficit hyperactivity disorder. eHealthMe is studying from 35,868 Vyvanse users. Check the latest studies of Vyvanse.

What is Ill-defined disorder?

Ill-defined disorder is found to be associated with 1,465 drugs and 1,257 conditions by eHealthMe. Check the latest studies of Ill-defined disorder.

On Jul, 15, 2026

28,083 people reported to have side effects when taking Vyvanse.
Among them, 60 people (0.21%) have Ill-defined disorder.

Could Vyvanse cause Ill-defined disorder?

Among these 60 people:

How long have people been on Vyvanse when they have Ill-defined disorder? *

  • < 1 month: 14.29 %
  • 1 - 6 months: 57.14 %
  • 6 - 12 months: 0.0 %
  • 1 - 2 years: 28.57 %
  • 2 - 5 years: 0.0 %
  • 5 - 10 years: 0.0 %
  • 10+ years: 0.0 %

What is the gender of people who have Ill-defined disorder when taking Vyvanse? *

  • female: 63.64 %
  • male: 36.36 %

What is the age of people who have Ill-defined disorder when taking Vyvanse? *

  • 0-1: 0.0 %
  • 2-9: 16.67 %
  • 10-19: 16.67 %
  • 20-29: 11.11 %
  • 30-39: 27.78 %
  • 40-49: 13.89 %
  • 50-59: 11.11 %
  • 60+: 2.78 %

What are other drugs people take besides Vyvanse? *

  1. Methotrexate: 7 people, 11.67%
  2. Abilify: 6 people, 10.00%
  3. Xanax: 6 people, 10.00%
  4. Dovonex: 5 people, 8.33%
  5. Celecoxib: 5 people, 8.33%
  6. Lexapro: 5 people, 8.33%
  7. Cyclosporine: 5 people, 8.33%
  8. Keppra: 4 people, 6.67%
  9. Symbicort: 4 people, 6.67%
  10. Humira: 4 people, 6.67%

What are other side effects people have besides Ill-defined disorder? *

  1. Nausea And Vomiting: 12 people, 20.00%
  2. Joint Pain: 10 people, 16.67%
  3. Psoriatic Arthropathy (inflammation of the skin and joints with kin condition which typically causes patches (plaques) of red, scaly skin to develop): 9 people, 15.00%
  4. Stress And Anxiety: 9 people, 15.00%
  5. Fatigue (feeling of tiredness): 8 people, 13.33%
  6. Drug Ineffective: 6 people, 10.00%
  7. Nausea (feeling of having an urge to vomit): 6 people, 10.00%
  8. Drug Intolerance (drug sensitivity): 6 people, 10.00%
  9. Fall: 6 people, 10.00%
  10. Feeling Abnormal: 6 people, 10.00%

What are the existing conditions these people have? *

  1. Affective Disorder (mental disorder): 5 people, 8.33%
  2. Convulsion (muscles contract and relax rapidly and repeatedly, resulting in an uncontrolled shaking of the body): 4 people, 6.67%
  3. Type 2 Diabetes: 4 people, 6.67%
  4. Langerhans' Cell Histiocytosis: 4 people, 6.67%
  5. Psoriatic Arthropathy (inflammation of the skin and joints with kin condition which typically causes patches (plaques) of red, scaly skin to develop): 4 people, 6.67%
  6. Dermatitis Atopic (inflammatory, chronically relapsing, non-contagious and pruritic skin disorder): 3 people, 5.00%
  7. Hiv Infection: 2 people, 3.33%
  8. Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 2 people, 3.33%
  9. Stress And Anxiety: 2 people, 3.33%
  10. Diabetes: 2 people, 3.33%

* Approximation only. Some reports may have incomplete information.

Do you take Vyvanse and have Ill-defined disorder?

- Check whether Ill-defined 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 Vyvanse:

Ill-defined disorder treatments and more:

How severe was Ill-defined disorder and when was it recovered:

Expand to all the drugs that have ingredients of lisdexamfetamine dimesylate:

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 Vyvanse:

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 Ill-defined disorder:

Browse all the conditions that are associated with Ill-defined disorder:

Related publications that referenced our studies

How the study uses the data?

The study uses data from the FDA. It is based on lisdexamfetamine dimesylate (the active ingredients of Vyvanse) and Vyvanse (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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