Levetiracetam and Limb malformation - a phase IV clinical study of FDA data

Summary:

Limb malformation is reported as a side effect among people who take Levetiracetam (levetiracetam), especially for people who are male, 0-1 old, have been taking the drug for 6 - 12 months also take Valproate Sodium, and have Sleep disorder.

The phase IV clinical study analyzes which people have Limb malformation when taking Levetiracetam. It is created by eHealthMe based on reports of 74,747 people who have side effects when taking Levetiracetam from the FDA, and is updated regularly.

What is Levetiracetam?

Levetiracetam has active ingredients of levetiracetam. It is often used in epilepsy. eHealthMe is studying from 75,292 Levetiracetam users. Check the latest studies of Levetiracetam.

What is Limb malformation?

Limb malformation (abnormal birth defect of leg) is found to be associated with 89 drugs and 188 conditions by eHealthMe. Check the latest studies of Limb malformation.



On Aug, 11, 2026

74,747 people reported to have side effects when taking Levetiracetam.
Among them, 13 people (0.02%) have Limb malformation.

Could Levetiracetam cause Limb malformation?

Among these 13 people:

How long have people been on Levetiracetam when they have Limb malformation? *

  • < 1 month: 0.0 %
  • 1 - 6 months: 25.0 %
  • 6 - 12 months: 37.5 %
  • 1 - 2 years: 37.5 %
  • 2 - 5 years: 0.0 %
  • 5 - 10 years: 0.0 %
  • 10+ years: 0.0 %

What is the gender of people who have Limb malformation when taking Levetiracetam? *

  • female: 0.0 %
  • male: 100 %

What is the age of people who have Limb malformation when taking Levetiracetam? *

  • 0-1: 100 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 0.0 %
  • 30-39: 0.0 %
  • 40-49: 0.0 %
  • 50-59: 0.0 %
  • 60+: 0.0 %

What are other drugs people take besides Levetiracetam? *

  1. Valproate Sodium: 3 people, 23.08%
  2. Zonisamide: 2 people, 15.38%
  3. Valproic Acid: 2 people, 15.38%
  4. Lamotrigine: 2 people, 15.38%
  5. Vimpat: 1 person, 7.69%
  6. Topiramate: 1 person, 7.69%
  7. Tegretol: 1 person, 7.69%
  8. Phenytoin: 1 person, 7.69%
  9. Lorazepam: 1 person, 7.69%
  10. Folic Acid: 1 person, 7.69%

What are other side effects people have besides Limb malformation? *

  1. Foetal Exposure During Pregnancy (exposing your unborn child to contraindicated in pregnancy leads birth defect): 9 people, 69.23%
  2. Dysmorphism (difference of body structure that is suggestive of a congenital disorder): 7 people, 53.85%
  3. Visual Impairment: 6 people, 46.15%
  4. Impulsive Behavior: 6 people, 46.15%
  5. Attention Deficit Hyperactivity Disorder (a chronic condition including attention difficulty, hyperactivity, and impulsiveness): 6 people, 46.15%
  6. Breathing Sounds - Abnormal (Stridor): 6 people, 46.15%
  7. Bruxism (habitual grinding of the teeth, typically during sleep): 6 people, 46.15%
  8. Drowsiness: 6 people, 46.15%
  9. Encopresis (inability to control the elimination of stool): 6 people, 46.15%
  10. Foot Deformity (functional disability of foot): 6 people, 46.15%

What are the existing conditions these people have? *

  1. Sleep Disorder: 2 people, 15.38%
  2. Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 1 person, 7.69%
  3. Foetal Exposure During Pregnancy (exposing your unborn child to contraindicated in pregnancy leads birth defect): 1 person, 7.69%
  4. Drug Exposure During Pregnancy: 1 person, 7.69%

* Approximation only. Some reports may have incomplete information.

Do you take Levetiracetam and have Limb malformation?

- Check whether Limb malformation 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 Levetiracetam:

Limb malformation treatments and more:

How severe was Limb malformation and when was it recovered:

Expand to all the drugs that have ingredients of levetiracetam:

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 Levetiracetam:

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 Limb malformation:

Browse all the conditions that are associated with Limb malformation:

Related publications that referenced our studies


How the study uses the data?

The study uses data from the FDA. It is based on levetiracetam (the active ingredients of Levetiracetam) and Levetiracetam (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: