03/03/2026
“Gas station he**in” is the nickname for tianeptine, a substance that is sometimes sold in convenience stores, smoke shops, or online under brand names like Tianaa, Zaza, Neptune’s Fix, Pegasus and TD Red. In the U.S., it is often marketed as a dietary supplement or nootropic which can mislead consumers about its safety.
Outside the U.S., tianeptine may be considered an antidepressant that is prescribed in lower doses to treat anxiety, major depression disorder and irritable bowel disease. Studies have shown high amounts of this drug increase the uptake of serotonin to the brain leading users to experience a sense of euphoria.
Misuse of tianeptine can produce effects similar to he**in or morphine, which is why it’s been dubbed “gas station he**in.” Its availability in gas stations or convenience stores does not mean it is safe or legal.