Tianeptine-Involved Emergency Department Visits, Fatal Overdoses, and Substance Seizures in Tennessee, 2021-2023

Tianeptine is an antidepressant that acts as an agonist to the mu-opioid receptor and enhances serotonin reuptake. Tianeptine has been legally sold as an antidepressant in some countries but is not approved for any medical use by the U.S. Food and Drug Administration (FDA). Tianeptine is not a federally controlled substance, but became a schedule II substance in Tennessee on July 1, 2022. This publication aims to describe the prevalence of tianeptine-involved emergency department visits, fatal overdoses, and substance seizures in Tennessee from 2021 to 2023.