Known as "gas station heroin," tianeptine is sold under names like Za Za Red and Tianna.
Users often buy tianeptine, sold under brand names including Za Za Red, Tianna, and TD Red, hoping for a boost of energy and better focus.
Tianeptine's withdrawal symptoms mirror those of opioidsQuitting the drug requires an approach similar to quitting opioids, according to the FDA.
In Wetumpka, Alabama, the local hospital's detox unit has attracted attention for helping people get off the drug, local television station WSFA reported in February.
"People with a history of opioid use disorder or dependence may be at particular risk of abusing tianeptine," according to the FDA's guidance.