EMIT II Plus Propoxyphene Assay
Screen for illicit use of DARVOCET

EMIT II Plus Propoxyphene Assay
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Although marketed drugs such as DARVON and DARVOCET were pulled from the market by the FDA in 2011, there is still illicit use in the U.S., a situation similar to methaqualone and QUAALUDE. The EMIT® II Plus Propoxyphene Assay detects propoxyphene and propoxyphene salts, such as propoxyphene napsylate, in human urine. It also detects norpropoxyphene (N-desmethyldextropropoxyphene), the major urinary metabolite of propoxyphene.

The EMIT II Plus Propoxyphene Assay provides:

  • Excellent precision—all within-lab (total) CVs ≤1.0% or less across the assay range
  • Ready-to-use liquid reagents, calibrators, and controls
  • >98% agreement with the reference method (GC/MS)


Applications are available for the Viva-Jr®, Viva-E®, Viva-ProE®, V-Twin® drug testing systems; AU® Series analyzers; Dimension® Integrated Chemistry Systems; and Dimension Vista® Intelligent Lab Systems.


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