A preliminary study of hydrocodone and hydromorphone to oxycodone ratios for distinguishing impurities from independent opioid use

Choucair, I; Villalba, CF; Vera, MA; Cassella-Mclane, G; Durant, TJS; El-Khoury, JM

El-Khoury, JM (通讯作者),20 York St-PS 535, New Haven, CT 06510 USA.

CLINICAL BIOCHEMISTRY, 2023; 112 (): 6

Abstract

Background: Urine drug testing (UDT) monitors prescription compliance and/or drug abuse. However, inter-pretation of UDT results obtained by liquid ch......

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