This article was first published on August 29, 2022. It was last edited or updated on September 4, 2022. Key facts about dextromethorphan abuse or dependence Dextromethorphan, which is used therapeutically as a cough suppressant, is also commonly misused for its euphoric, hallucinogenic, and dissociative properties (Journey et al., 2022; Schifano et al., 2021). Here…