Clinical characteristics of over‐the‐counter (OTC) drug abusers in psychiatric practice in Japan: Comparison of single and multiple OTC product abusers

Abstract Objective To examine the clinical characteristics of over‐the‐counter (OTC) drug abusers in psychiatric practice in Japan. Method We examined the attributes, ICD‐10 subcategory, and comorbid mental disorders of patients who mainly abuse OTC products and compared the clinical characteristics of single product and multiple products abusers, using the database of the “2022 Nationwide Mental Hospital Survey of Drug‐related Disorders.” Results Among the 2468 subjects included in this survey, 273 (11.1%) used OTC products as main drugs. Of these, 209 (78.3%) and 58 (21.7%) were classified into the single product group and the multiple products group, respectively. Six were excluded for unknown ingredients. By comparing these groups, we found that many of the multiple products group consisted of young women who were recently treated for drug problems. Many subjects in the group also had a short treatment period. No differences were observed between the groups regarding the ICD‐10 F1 subcategory, but many subjects in the multiple products group fulfilled the criteria of F6 “disorders of adult personality and behavior.” Conclusion OTC products are easily accessible drugs of abuse for young women in Japan. The results of this study indicate the necessity to reconsider the educational approach for preventing drug abuse, which has focused on illicit drugs. The study also indicates that some OTC products, which contain ingredients banned overseas due to their harmful effects, are still sold in Japan and that abusers for those products exist. Measures by the government are considered urgently needed

Personality and substance use in Japanese adolescents: The Japanese version of Substance Use Risk Profile Scale

AbstractSubstance Use Risk Profile Scale (SURPS; Conrod & Woicik, 2002) measures four risk personality dimensions related to substance use; anxiety sensitivity (AS), hopelessness (H), sensation seeking (SS), impulsivity (IMP). The aim of this study is to develop the Japanese version of Substance Use Risk Profile Scale (SURPS-J) and to probe the reliability and validity of this scale to the Japanese context. This study consists of the test of the factor analysis (Study 1; N=462), the reliability (Study 2; N=64), and the validity (Study 3; N=182). Our findings are as below; Study 1 showed the conformed factorial structure of SURPS-J and Study 2 revealed the good test–retest reliability. Additionally, Study 3 demonstrated the adequate validity of SURPS-J and its sensitivity in identifying risky drinking motivations and lifetime tobacco and alcohol use. Results showed that high H individuals are likely to experience smoking under the personal and collective situations, while high SS and IMP individuals are prone to drink alcohol under the collective situation. Additionally, high AS individuals are prone to drink by virtue of negative reinforcement motives and high SS and IMP drink by reason of all drinking reinforcement motives