The Identification of Quinazolinones on the Illicit Market

Abstract The abuse of hypnotics of the quinazolinone series is well known. Methaqualone [2-methyl-3-o-tolyl-4 (3H)-quinazolinone] in both licit and illicit tablets is encountered with increasing frequency. Several papers have discussed the identification of this drug in tablets and biological materials. Its metabolism has been studied in man [1–4] and animals [5,6]. Concentrations in urine, blood, and organs in cases of poisoning have been established [7–11].