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Concomitant use of dextromethorphan and alcohol-induced dissociation in a patient with alcohol dependence.

Yasuhito Nagai, Yuko Tajima, Koichi Miyakawa

PCN reports : psychiatry and clinical neurosciences December 1, 2024 DOI: 10.1002/pcn5.70011 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Case report Peer reviewed
Sample size 1
Population A patient with alcohol dependence
Intervention haloperidol
Topics Addiction
Keywords Alcohol dependence Dextromethorphan Over‐the‐counter otc drug
Key findings Concomitant use of DXM and alcohol can cause acute psychotic dissociation that is difficult to distinguish from alcohol withdrawal symptoms.

Abstract

Dextromethorphan (DXM) is an over-the-counter drug that is commonly abused by teenagers. Its main pharmacological property is a low-affinity N-methyl-d-aspartate (NMDA) receptor antagonist. We report acute psychotic dissociation induced by DXM and alcohol in a patient with alcohol dependence, which made it difficult to distinguish alcohol withdrawal symptoms with limited information. The psychotic symptoms were ameliorated by haloperidol; however, in cases of DXM abuse, haloperidol treatment should be avoided. In the consultation of patients with addiction, the possibility of various addictive drugs must be kept in mind. The concomitant use of DXM and alcohol causes easy dissociation and high-dose usage of DXM and alcohol withdrawal symptoms are difficult to distinguish.