Specimen Requirements

Title

Doxepin, Sinequan (Includes Nordoxepin)

Specimen Requirement

1 Red Top/serum or Lavender/plasma. Do not collect in serum separator tube. After 30 minutes of clotting, promptly centrifuge to separate and send 1.0 mL  serum or plasma in a screw-capped plastic vial. PLEASE indicate serum or plasma on the transport tube. Collect just before next dose.

Methodology

Stability

Room Temperature 48 hours, Refrigerated 14 days, Frozen 14 days

Reference Range

By Report*

Turnaround

2-3 days

Clinical Use

Evaluate toxicity; monitor therapeutic levels

Test Code

DOXW