VENLAFAXINE, SERUM

Reference values and Delivery Time Modification

Test code: 3603

Mnemonic code: VENL

Effective update from 26/06/2023

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Reference Values: Therapeutic values and toxic values correspond to the sum of venlafaxine + o-desmethylvenlafaxine (metabolite): Reference limits: 100 - 400 µg/L Toxic values: Greater than 1000 µg/L Ratio o- desmethylvenlafaxin/Venlafaxine: 2.70 - 7.70                          Delivery term: 5 days                   Version of Test: 26

Reference Values: Therapeutic interval (Venlafaxine + O-desmetilvenlafaxine): 100 – 400 µg/L Toxicity (Venlafaxine + O-desmetilvenlafaxine): Greater than 800 µg/L           Ratio o- desmethylvenlafaxin/Venlafaxine: 2.70 - 7.70 LoQ:  Venlafaxine 10 µg/L       O-desmetilvenlafaxine 10 µg/L * Source:  M. Schulz, A. Schmoldt, H. Andresen-Streichert, S. Iwersen-Bergmann. Revisited: Therapeutic and toxic blood concentrations of more than 1,100 drugs and other xenobiotics. Critical Care 2020                                                    Delivery term: 6 days                   Version of Test: 27

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