α-Methylfentanyl was discovered by a team at
Janssen Pharmaceuticals in the 1960s. In 1976, it began to appear mixed with heroin, as an additive, and the mixture was sometimes also called "China White". It was first identified in the bodies of two drug overdose victims in
Orange County, California, in December 1979, who appeared to have died from opiate overdose but tested negative for any known drugs of this type. Over the next year, there were 13 more deaths, and eventually the responsible agent was identified as α-methylfentanyl. α-Methylfentanyl was placed on the U.S.
Schedule I list in September 1981, only two years after its appearance on the street, but already other
fentanyl analogs were being developed. Following the appearance of α-methylfentanyl on the market, dozens of new fentanyl analogs have been reported, starting with
para-fluorofentanyl, followed by
α-methylacetylfentanyl, then by the highly potent
3-methylfentanyl, and subsequently by many others such as
β-hydroxyfentanyl,
ohmefentanyl,
β-hydroxythiofentanyl and β-hydroxy-4-methylfentanyl. The development of such a wide structural family of novel narcotic drugs was a major factor responsible for the implementation of the
Federal Analog Act which for the first time attempted to control entire families of drugs based on their structural similarity rather than scheduling new drug analogs individually as each appeared. In 1991, a group of Russian chemistry students discovered a simplified synthesis route which used
phosgene instead of
phenethylamine. Soon, abuse of the drug became widespread, causing a tenth of overdoses in the Moscow region. ==Effects==