Specimen Requirements

Title

Venlafaxine (Effexor)

Specimen Requirement

Draw immediately before next scheduled dose.

Draw blood in a plain red-top tube/1.0 mL serum. Spin, separate and send refrigerated.

Methodology

Stability

Room Temperature or Refrigerated 14 days

Reference Range

By Report*

Turnaround

5-7 days

Clinical Use

Test Code

VENW