Topiramate
Clinical Biochemistry
Sample and container requirements
Serum EDTA Plasma Lithium Heparin Plasma (paediatrics only) Whole Blood Saliva
Minimum volume required
200 μL serum/plasma/blood/saliva
Special requirements
Take sample immediately before an oral dose.
Patient preparation
Take sample immediately before an oral dose.
Sample viability
Turnaround time
10 days
Reference range
Please refer to report for reference ranges.
Clinical guidance
Please follow the link below to the referral laboratory website for more information: https://epilepsysociety.org.uk/sites/default/files/2024-11/TDM-SOP-SER-002__v3.4__PREVIEW.pdf
Notes
Sent to Epilepsy Society, Chalfont St Peter
Images to go here
This information was last updated on 19 August 2026