Amitriptyline, Plasma / Serum (Laroxyl, Tryptanol)

Department

Toxicology

Delphic Registration Code

AMI

Synonyms

Laroxyl
Tryptanol

Turnaround Time

7 days

Test Code

4616

Specimen Type

• Serum
• Plasma

Specimen Requirements

Tube/Container Type:

Preferred

• Lithium Heparin - Non-gel (Green Cap)

Acceptable

• Serum (Red Cap)

Additional Specimen Information

DO NOT USE SST GEL TUBES FOR THIS ASSAY

Aliquot Instructions

Sample Type

• Serum
• Plasma

Transport to Lab

Ambient (8 - 24 degrees Celsius)
If overnight - Chilled (2 - 8 degrees Celsius)

Additional Referral/Aliquot Information

Do not use gel tubes for this assay.

Interpretation

The standard half-life of amitriptyline is 15 hours, with time to steady-state of 7 days.

Reference Intervals

360 – 900 nmol/L

The reported therapeutic range is for the sum of the amitriptyline and nortriptyline concentrations when used for depression

Test Method

Liquid Chromatography-MSMS

Non-Funded Test Cost

$30.17 (Exclusive of GST)

Billing Code

4616

Optimal specimen collection time is 18 hours after dose.

Include dose, dose interval, dose time, and collection time on request form.

Contact Information

Enquiry Form