In an effort to reduce opioid-related overdose deaths, states across the US are implementing new laws to increase access to naloxone—a drug that reverses opioid overdose. In a new report published in the journal Substance Abuse , IMPAQ researchers, Dr. Guido Cataife and Dr. Jing Dong, with co-author Corey Davis, share findings from their study on the causal impact of Naloxone Access Laws on state-level opioid-related mortality rates.