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Vimpat and Formication - a phase IV clinical study of FDA data

Summary:

Formication is reported as a side effect among people who take Vimpat (lacosamide), especially for people who are female, 50-59 old, also take Lamictal, and have Partial seizures.

The phase IV clinical study analyzes which people have Formication when taking Vimpat. It is created by eHealthMe based on reports of 20,279 people who have side effects when taking Vimpat from the FDA, and is updated regularly.

What is Vimpat?

Vimpat has active ingredients of lacosamide. It is often used in epilepsy. eHealthMe is studying from 20,831 Vimpat users. Check the latest studies of Vimpat.

What is Formication?

Formication (a sensation that exactly resembles that of small insects crawling on (or under) the skin) is found to be associated with 558 drugs and 917 conditions by eHealthMe. Check the latest studies of Formication.

On Jan, 05, 2026

20,279 people reported to have side effects when taking Vimpat.
Among them, 17 people (0.08%) have Formication.

Could Vimpat cause Formication?

Among these 17 people:

What is the gender of people who have Formication when taking Vimpat? *

  • female: 88.24 %
  • male: 11.76 %

What is the age of people who have Formication when taking Vimpat? *

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

What are other drugs people take besides Vimpat? *

  1. Marijuana: 3 people, 17.65%
  2. Briviact: 3 people, 17.65%
  3. Cannabis: 3 people, 17.65%
  4. Keppra Xr: 3 people, 17.65%
  5. Lamictal: 3 people, 17.65%
  6. Zofran: 2 people, 11.76%
  7. Amitiza: 2 people, 11.76%
  8. Ampyra: 2 people, 11.76%
  9. Botox: 2 people, 11.76%
  10. Gilenya: 2 people, 11.76%

What are other side effects people have besides Formication? *

  1. Fall: 7 people, 41.18%
  2. Fatigue (feeling of tiredness): 6 people, 35.29%
  3. Drug Ineffective: 5 people, 29.41%
  4. Head Injury: 4 people, 23.53%
  5. Headache (pain in head): 4 people, 23.53%
  6. Memory Loss: 4 people, 23.53%
  7. Anger: 4 people, 23.53%
  8. Stress And Anxiety: 4 people, 23.53%
  9. Balance Disorder: 4 people, 23.53%
  10. Feeling Abnormal: 3 people, 17.65%

What are the existing conditions these people have? *

  1. Partial Seizures (seizures which affect only a part of the brain at onset): 4 people, 23.53%
  2. Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 2 people, 11.76%
  3. Infantile Spasms: 2 people, 11.76%
  4. Pain: 1 person, 5.88%
  5. Neuropathy Peripheral (surface nerve damage): 1 person, 5.88%
  6. Nerve Injury: 1 person, 5.88%
  7. High Blood Cholesterol: 1 person, 5.88%
  8. Depression: 1 person, 5.88%

* Approximation only. Some reports may have incomplete information.

Do you take Vimpat and have Formication?

- Check whether Formication 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 Vimpat:

Formication treatments and more:

How severe was Formication and when was it recovered:

Expand to all the drugs that have ingredients of lacosamide:

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 Vimpat:

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 Formication:

Browse all the conditions that are associated with Formication:

How the study uses the data?

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