ISSUP Nigeria has released its seventeenth Newsletter! In this edition, ISSUP Nigeria Chapter joined the global ISSUP family to celebrate its 10 years anniversary (2015 to 2025), a decade of global impact. The edition also highlighted the importance of substance use prevention and the need to invest in prevention in line with the theme for this year’s World Drug Day: “The Evidence is Clear: Invest in Prevention” showcasing some of the activities of ISSUP Nigeria Chapter in commemorating the 2025 World Drug Day. Enjoy it!