A 'fourth wave'of high mortality involving methamphetamine and cocaine use has been
gathering force in the USA. Availability and use of illicit fentanyls are still the major drivers of …

Background Prevalence of fentanyl-laced counterfeit prescription pills has been increasing
in the US, possibly placing a wider population at risk for unintentional exposure. We aimed …

Background: Fentanyl-related deaths continue to increase in the United States; however,
most national studies focus on fatal overdose. More research, including data on nonfatal …

Background Overdose deaths involving stimulants and opioids simultaneously have raised
the specter of widespread contamination of the stimulant supply with fentanyl. Methods We …

Background: The use of ketamine, a controlled dissociative anesthetic, has become more
widespread in recent years with recreational/nonmedical use increasing and ketamine …

Areas of particular interest for future research include the use of data from drug checking
services to inform surveillance efforts of the illicit drug supply and the development of …

With the current crisis related to the diffusion of fentanyl and other novel opioids in several
countries and populations, new and effective approaches are needed to better elucidate the …

Background Psilocybin, the principle psychoactive component in “shrooms”, is regaining
acceptance in therapeutic settings, leading to media coverage of medical benefits …

Abstract Background Pentobarbital is a Schedule II/III short-acting barbiturate with limited
medical use in humans. Veterinary professionals use pentobarbital to euthanize dogs, cats …

Importance The US is experiencing a protracted drug overdose crisis primarily associated
with exposure to illicitly manufactured fentanyl (IMF), methamphetamine, and cocaine …