Venlafaxine

Alphabetical Test listing

Venlafaxine-2394

  
Venlafaxine
  
2394
  
82492.03
  
VEN
  
Desvenlafaxine
Effexor®
Pristiq®
  
  • Measures both Venlafaxine (Effexor) and
  • Venlafaxine metabolite (Desvenlafaxine), sold as Pristiq®
  

Therapeutic drug management

  
Serum
  
  
3.0 mL
  
0.6 mL
  

Trough levels are the most reproducible

  
  1. Allow sample to clot
  2. Spin
  3. Transfer serum to a Serum/plasma transfer vial/tube (MedTox), labelled as serum, within two (2) hours of sample collection
  
  
Heparin plasma
  

Dk green heparin (Li or Na), no gel

 

  

Immediately following collection, mix sample thoroughly by gently inverting 5 - 10 times, to prevent clotting

  
  1. Spin
  2. Transfer plasma to a Serum/plasma transfer vial/tube (MedTox) labelled as the appropriate plasma type
  

Refrigerated (preferred)

Ambient (OK) - 3 days

Frozen (OK)

  
MedTox Laboratories (179): R-MX
  
Tu, Fr
  
3 - 4 days
  

Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)

  

100 - 500 ng/mL

 

  

Not established

  
G0480
  
Yes
  
  
11/30/2001
  
03/09/2021
  
05/12/2020