The Drug Enforcement Administration (DEA) has issued a new Public Safety Advisory warning about an increasingly dangerous illicit drug supply driven by fentanyl mixed with powerful synthetic substances such as xylazine, nitazenes, cychlorphine, and medetomidine. These combinations are making the drug supply more unpredictable and more deadly than ever before. Many of these substances are not approved for human use and may be unknowingly mixed into counterfeit pills or illicit

Cannabis access has accelerated globally and across the United States, creating substantial variation in regulatory systems, product availability, potency limits, commercialization practices, and public health risks. In this Ask the Expert video, Dr. Rosalie Liccardo Pacula, Professor and Elizabeth Garrett Chair in Health Policy, Economics & Law in the Sol Price School of Public Policy at the University of Southern California, examines the evolving policy landscape of cannabi

by Jessica Hulsey In my book Understanding Addiction, I dig into key topics about addiction and answer common questions that family members and caregivers have about substance use disorders (SUD), the medical term for addiction. It isn’t an excerpt from a medical textbook or a scientific journal. Instead, I’ve sat down with physicians and researchers in the addiction field to translate the science into understandable terms that I hope you find helpful. A Medical Condition The

Join us on June 11, 2026, for a webinar exploring the science of addiction and models of recovery for substance use disorders. This webinar will begin with a foundational overview of the neurobiology of addiction, highlighting how changes in the brain shape behavior, decision-making, and vulnerability to relapse. Speakers will explain environmental cueing—such as the influence of people, places, and experiences—and its powerful role in triggering relapse. Building on this fou