The National Institutes of Health (NIH), through the National Institute on Drug Abuse (NIDA), has announced a funding opportunity for the development of medications aimed at preventing and treating opioid and stimulant use disorders and overdose. This initiative, structured as a cooperative agreement (UG3/UH3), seeks innovative preclinical and clinical research proposals that address significant gaps in the treatment landscape, particularly for opioid use disorder (OUD) and psychostimulant use disorder (PsUD). The program is critical in responding to the ongoing overdose crisis and aims to facilitate the FDA's approval of novel pharmacotherapeutics, including new chemical entities and biologics, with a funding ceiling of $3 million per year over a maximum of five years. Interested applicants can find more information and guidelines at the NIH grants website and should direct inquiries to grantsinfo@nih.gov, with applications accepted until September 1, 2025.