Valproic Acid (Valproate)
Clinical Biochemistry
Sample and container requirements
Serum
Minimum volume required
Special requirements
None
Patient preparation
Samples should be taken at trough drug levels by collecting a sample prior to the next dose.
Sample viability
Turnaround time
5 days
Reference range
There is no recommended therapeutic range for valproate
Clinical guidance
Valproate (valproic acid) is primarily used in the treatment of petit mal seizures, as well as other generalised and partial complex seizures. Due to the potential of severe adverse reactions, it is important that serum levels of valproate be monitored during therapy. Please refer to LabTestsOnlineUK to learn more about valproic acid. https://labtestsonline.org.uk/tests/valproic-acid
Notes
Images to go here
This information was last updated on 19 August 2026