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Primidone

Source Blood
Mnemonic PRIM
Specimen Requirements

1 x 3 mL light green (mint) top PST tube.  Gold top SST tube also acceptable.

Collect specimen 0-60 minutes prior to next dose.

Minimum Whole Blood Volumes for Micro-Collections using Microtainers
Specimen Handling
Additional Information

Record time of last dose on requisition.

Phenobarbital, a metabolite of Primidone, is tested with all Primidone requests.

For additional information, see Half-life and Time to Steady State.

Testing Location Chemistry-DSC
Testing Frequency Daily
Alternate Name(s) Mysoline
Reference Interval

Therapeutic range: 23 - 55 mmol/L

Click here for critical values.