Preferred Sample Type


Suitable Specimen Types

  • Serum
  • EDTA Plasma
  • Li Hep Plasma
50 ul of plasma or serum.

Specimen Transport


Sample Processing in Laboratory

Centrifuge and place in toxicology box in cold room.

Sample Preparation


Turnaround Time

3 working days

Sample Stability

4 ÂșC


General Information

Etizolam (Depas) is a thienotriazolodiazepine derivative, similar in structure to brotizolam, that has been in clinical use in certain Asian and European countries since 1983 as a sedative-hypnotic drug. It has gathered some popularity on the new psychoactive substance (NPS) market in the UK and Europe. Etizolam is unlicensed in the UK although used as a prescribed medication in other countries such as India, Italy and Japan. A 1 mg tablet is equivalent to a 10 mg diazepam (Valium) tablet.

The adverse effects of etizolam therapy include confusion, disorientation, ataxia, slurred speech and delerium.


Patient Preparation

None required.


Measured by LC-MS/MS

Reference Range

Please contact laboratory for interpretation.


  • EQA Scheme?: No

The laboratories at Heartlands Hospital, Good Hope Hospital and Solihull Hospital form part of the services provided by University Hospitals Birmingham and are UKAS (United Kingdom Accreditation Service) accredited to the ISO 15189:2012 standard. For a list of accredited tests and other information please visit the UKAS website using the following link:

  • Heartlands, Good Hope and Solihull Hospital pathology laboratories are a UKAS accredited medical laboratory No.8217
  • United Kingdom Health Security Agency laboratory is a UKAS accredited medical laboratory No.8213

Tests not appearing on the UKAS Schedule of Accreditation currently remain outside of our scope of accreditation. However, these tests have been validated to the same high standard as accredited tests and are performed by the same trained and competent staff.

For further test information, please visit the test database:

Protection of personal information - Laboratory Medicine comply with the Trust Data Protection policy and have procedures in place to allow the Directorate and its employees to comply with the Data Protection act  1998 and associated best practice and guidance.

For further information contact Louise Fallon, Quality Manager, 0121 424 1235