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Valproic Acid

Also known as: Valproate; Free Valproic Acid [Often referred to by brand name]
Formal name: Valproic Acid
Related tests: Carbamazepine; Lamotrigine; Phenytoin; Phenobarbital; Therapeutic Drug Monitoring; Emergency and Overdose Drug Testing

Why should I do it?
To determine the concentration of valproic acid in the blood and to maintain a therapeutic level

When should I do it?
At regular intervals to monitor the drug's level; to detect low or excessive (potentially toxic) concentrations

What Kind of Sample is Needed?
A blood sample drawn from a vein in your arm

Test Preparation Needed?
No special test preparation needed, but talk to your doctor about the timing of sample collection. Since dosage timing varies and some formulations are time-Released, Collection specifics may vary. Often, the recommended time for sample collection is just before the next dose is taken (trough level).