LAUSR

Individuals with opioid use disorder (OUD) endorse high rates of combustible smoking (Zale et al., 2015) which is associated with poorer outcomes (e.g., opioid craving and lower detoxification completion rates) among individuals receiving medications for opioid use disorder (MOUD; Mannelli et al., 2013) and lower smoking cessation rates (Okoli et al., 2010). The complex pharmacological relationship between opioids and nicotine may help explain these findings (Kohut, 2017); however, little is known about psychosocial variables that influence MOUD processes among combustible smokers with OUD. The present study sought to expand upon prior work (Mannelli et al., 2013) by examining the impact of psychological factors and smoking-related variables on opioid withdrawal symptoms among smokers with OUD receiving Suboxone at an inpatient substance use treatment facility. Current smokers with OUD (N = 64) completed a battery of psychological measures examining depression, anxiety, and smoking constructs. The present study tested the influence of daily smoking rate, nicotine dependence, smoking urges, anxiety, and depression on opioid withdrawal symptoms through a hierarchical multiple regression. Findings revealed that smoking urges (p = .003) predicted severity of opioid withdrawal symptoms while controlling for race, daily smoking rate, and nicotine dependence. Depression (p = .000), however, explained variance in severity of opioid withdrawal symptoms above and beyond all smoking-related variables and anxiety. Results highlight the importance of considering psychological factors, specifically depression, which impact treatment processes among smokers with OUD to help inform the development of effective treatment interventions for both OUD and smoking cessation among individuals with OUD. (PsycInfo Database Record (c) 2022 APA, all rights reserved).