Therapeutic Drug Monitoring AED

Antiepileptic Drug Panel.

Simultaneous quantification of 24 antiepileptic drugs from plasma or serum by LC-MS/MS for therapeutic drug monitoring.

Quick Reference
Method
LC-MS/MS
Sample Types
Plasma / Serum
Analytes

24 drugs

Turnaround

3–5 working days

Enquire About This Test

What does this test assess?

This comprehensive panel enables simultaneous monitoring of 24 antiepileptic drugs, supporting optimisation of seizure control while minimising adverse effects through individualised dosing.

Clinical indications include:

  • Therapeutic drug monitoring in epilepsy
  • Assessment of medication adherence
  • Dose optimisation in polytherapy regimens
  • Monitoring during pregnancy (altered pharmacokinetics)
  • Detection of drug-drug interactions
  • Evaluation of breakthrough seizures

Measured analytes

Analyte coverage

24 antiepileptic drugs including carbamazepine, oxcarbazepine, lamotrigine, valproic acid, phenytoin, phenobarbital, levetiracetam, topiramate, lacosamide, zonisamide, clobazam, clonazepam, and others.

Analytical technique

All 24 drugs are quantified simultaneously by LC-MS/MS from a single plasma or serum sample, using stable isotope internal standards for each analyte. The method provides the specificity necessary to avoid cross-reactivity between structurally similar drugs and their metabolites.

Testing process

From enquiry to results — a straightforward process.

1
Get in touch
Contact us to discuss your testing requirements
2
Collect your sample
Blood sample collected by a healthcare professional via standard venepuncture
3
Post to our lab
Samples shipped to our laboratory following standard pre-analytical protocols
4
Receive results
Results delivered within 3–5 working days of sample receipt

Where this test is available

This test is available to healthcare professionals, wellness brands, clinics, and research institutions worldwide. We currently serve partners in:

  • Europe (EU & non-EU)
  • United Kingdom
  • Asia & Southeast Asia
  • Australia & New Zealand
  • United States

Whether you need testing services for your patients, white-label kits for your brand, or method transfer to your own laboratory — get in touch to discuss how we can work together.

Frequently Asked Questions

What does this panel measure?

Simultaneously quantifies 24 antiepileptic drugs from a single plasma or serum sample by LC-MS/MS. Covers all major AEDs including carbamazepine, valproate, lamotrigine, levetiracetam, and newer agents.

Why is therapeutic drug monitoring important for AEDs?

Antiepileptic drugs have narrow therapeutic windows — too little risks seizure breakthrough, too much risks toxicity. Individual metabolism varies widely, making blood level monitoring essential for dose optimisation.

How is the sample collected?

Venous blood draw into plasma or serum tubes by a healthcare professional. Trough levels (just before the next dose) are typically recommended.

How long does it take to get results?

Results are typically delivered within 3 to 5 working days from the time your sample arrives at our laboratory. The analysis is performed by LC-MS/MS.

Why use LC-MS/MS instead of immunoassay for AED monitoring?

LC-MS/MS measures each drug individually without cross-reactivity from structurally similar drugs or metabolites. Immunoassays can over-estimate or under-estimate levels due to interference.

Which countries is this test available in?

Masdiag's antiepileptic drug monitoring panel is available worldwide through our partner network. We currently serve healthcare professionals, wellness brands, and clinics in Europe, the United Kingdom, Asia, Australia, New Zealand, and the United States. Contact us to discuss testing services, white-label kits, or method transfer to your laboratory.

Interested in this method?

Whether you need testing services, method transfer, or white-label kit development — we'd love to hear from you.