Keppra and Drug level fluctuating - a phase IV clinical study of FDA data

Summary:

Drug level fluctuating is reported as a side effect among people who take Keppra (levetiracetam), especially for people who are female, 30-39 old, have been taking the drug for 6 - 12 months also take Dilantin, and have Birth control.

The phase IV clinical study analyzes which people have Drug level fluctuating when taking Keppra. It is created by eHealthMe based on reports of 70,297 people who have side effects when taking Keppra from the FDA, and is updated regularly.

What is Keppra?

Keppra has active ingredients of levetiracetam. It is often used in epilepsy. eHealthMe is studying from 73,504 Keppra users. Check the latest studies of Keppra.

What is Drug level fluctuating?

Drug level fluctuating is found to be associated with 91 drugs and 195 conditions by eHealthMe. Check the latest studies of Drug level fluctuating.



On Jul, 09, 2026

70,297 people reported to have side effects when taking Keppra.
Among them, 12 people (0.02%) have Drug level fluctuating.

Could Keppra cause Drug level fluctuating?

Among these 12 people:

How long have people been on Keppra when they have Drug level fluctuating? *

  • < 1 month: 0.0 %
  • 1 - 6 months: 0.0 %
  • 6 - 12 months: 100 %
  • 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 Drug level fluctuating when taking Keppra? *

  • female: 75 %
  • male: 25 %

What is the age of people who have Drug level fluctuating when taking Keppra? *

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 14.29 %
  • 20-29: 0.0 %
  • 30-39: 85.71 %
  • 40-49: 0.0 %
  • 50-59: 0.0 %
  • 60+: 0.0 %

What are other drugs people take besides Keppra? *

  1. Dilantin: 3 people, 25.00%
  2. Phenytoin: 2 people, 16.67%
  3. Zyrtec: 1 person, 8.33%
  4. Lamictal: 1 person, 8.33%
  5. Ativan: 1 person, 8.33%
  6. Cyclophosphamide: 1 person, 8.33%
  7. Depakote: 1 person, 8.33%
  8. Effexor: 1 person, 8.33%
  9. Errin: 1 person, 8.33%
  10. Folic Acid: 1 person, 8.33%

What are other side effects people have besides Drug level fluctuating? *

  1. Normal Newborn: 3 people, 25.00%
  2. Anticonvulsant Drug Level Increased: 2 people, 16.67%
  3. Consciousness - Decreased: 2 people, 16.67%
  4. Convulsion (muscles contract and relax rapidly and repeatedly, resulting in an uncontrolled shaking of the body): 2 people, 16.67%
  5. Maternal Exposure During Pregnancy (use of substance during pregnancy): 2 people, 16.67%
  6. Drug Toxicity: 1 person, 8.33%
  7. Arrhythmias (irregular heartbeat): 1 person, 8.33%
  8. Burning Sensation: 1 person, 8.33%
  9. Cerebrovascular Disorder (disease of brain): 1 person, 8.33%
  10. Depression: 1 person, 8.33%

What are the existing conditions these people have? *

  1. Systemic Lupus Erythematosus (an autoimmune disease, which means the body's immune system mistakenly, attacks healthy tissue): 5 people, 41.67%
  2. Birth Control: 5 people, 41.67%
  3. Ulcerative Colitis (inflammatory bowel disease (ibd). it causes swelling, ulcerations, and loss of function of the large intestine): 4 people, 33.33%
  4. Convulsion (muscles contract and relax rapidly and repeatedly, resulting in an uncontrolled shaking of the body): 4 people, 33.33%
  5. Ill-Defined Disorder: 2 people, 16.67%
  6. Stress And Anxiety: 1 person, 8.33%
  7. Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 1 person, 8.33%
  8. Hypersensitivity: 1 person, 8.33%
  9. Central Nervous System Inflammation (infection of brain or spinal cord): 1 person, 8.33%
  10. Attention Deficit Hyperactivity Disorder (a chronic condition including attention difficulty, hyperactivity, and impulsiveness): 1 person, 8.33%

* Approximation only. Some reports may have incomplete information.

Do you take Keppra and have Drug level fluctuating?

- Check whether Drug level fluctuating is associated with a drug or a condition
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Related studies:

Effectiveness of, long term effects of, and alternative drugs to Keppra:

Drug level fluctuating treatments and more:

How severe was Drug level fluctuating 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 Keppra:

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 Drug level fluctuating:

Browse all the conditions that are associated with Drug level fluctuating:

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 Keppra) and Keppra (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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