# K163590: Psychemedics Microplate EIA for Benzodiazepines in Hair

- Pathway: 510(k) (Traditional)
- Applicant: Psychemedics Corporation
- Decided: Sep 15, 2017 after 269 days
- Product code: JXM (Enzyme Immunoassay, Benzodiazepine)
- Device class: 2
- Regulation: 21 CFR 862.3170
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
No later device cites it as a predicate yet.
0 of 1 device in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. The FDA summary names its predicate without a number.
- (no number) Orasure Benzodiazepine Intercept MICRO-PLATE EIA: named in the summary without a submission number

## Indications for use
The Psychemedics Microplate EIA For Benzodiazepines in Hair is an in vitro diagnostic device for the qualitative detection of benzodiazepines in hair. The assay is intended for use in workplace settings for the qualitative analysis of human head and body hair. The assay uses a cutoff calibrator of 1 ng oxazepam/10 mg hair. Psychemedics plans to perform this test at one site. Psychemedics has not performed an evaluation of reproducibility at different laboratories. The Psychemedics Microplate EIA For Benzodiazepines in Hair provides only a preliminary analytical test result. A more specific alternate chemical method must be used to obtain a confirmed analytical result. Liquid Chromatography/Mass spectrometry/Mass spectrometry (LC/MS/MS) using deuterated internal standards in multiple reaction monitoring (MRM) mode is the confirmatory method used by Psychemedics Corporation. This confirmatory method uses a cutoff of 0.2 ng of the identified benzodiazepine/10 mg hair.

Source page: https://510kreport.com/device/K163590
Methodology: https://510kreport.com/methodology