Motivations for Prescription Drug Misuse Related to Mental Health Problems in Adults

Background: Prescription drug misuse (PDM) is a significant public health problem associated with mental health symptoms.

Objectives: This project investigates the connections between PDM motivations and mental health to inform intervention efforts.

Methods: Using nationally representative adult data from the 2016-2018 National Survey on Drug Use and Health (N = 128,205; 53% female) this project investigated which motivations for misuse are related to past-year mental health problems including any mental illness, serious mental illness, major depressive episode, and suicidal thoughts. Complex samples logistic regression models of the main motivation of PDM for each mental health problem were conducted separately for each prescription drug class (i.e., opioids, tranquilizers, sedatives, and stimulants) while controlling for demographic characteristics.

Results: Adults that reported PDM were more likely than those with no PDM to endorse past year mental health problems. Compared to those that reported PDM of other medications, those misusing prescription opioids and tranquilizers to help with emotions and misusing sedatives to "relax or relieve tension" were more likely to have all categories of mental health problems. Those that misused prescription stimulants to "help study" had lower odds of all mental health problems.

Conclusions: While there were differences based on prescription drug class, a range of motivations increased adults' likelihood to have mental health problems and common themes were found across drug classes. While causality is still undetermined, prevention and intervention efforts that are multifaceted and individualized, while broadly providing adults with other ways to cope with negative emotions are likely to help reduce PDM.