Gas station heroin is a street name for the antidepressant tianeptine, a drug the U.S. Food and Drug Administration (FDA) has not approved for any use. It is sold at gas stations, convenience stores, vape shops, and online.
Tianeptine is not heroin, but it activates opioid receptors. Misuse, especially at high doses, can cause opioid-like intoxication, dependence, and overdose, so parents may need to learn how treatment for teen opioid addiction works.
Why Tianeptine Is Called Gas Station Heroin
Tianeptine is approved for depression in some countries outside the United States. Its use abroad does not establish that unregulated products sold in U.S. stores are safe or approved.
In the U.S., tianeptine is not approved for any medical use. Even so, it is sold as a dietary supplement or as a “research chemical” for labs. The FDA has warned about products such as Tianaa, Zaza, Neptune’s Fix, Pegasus, and TD Red [1].
The nickname comes from where it is sold and from its opioid-like effects. A product on a store shelf can seem safe, but the FDA warns buyers not to assume it is. Other slang also ties a drug to heroin, as a post on what “hillbilly heroin” means explains.
Tianeptine’s Opioid Agonist Effects on the Brain
An opioid agonist is a drug that turns on opioid receptors. These are the spots in the brain where heroin and opioid painkillers work.
Serotonin Reuptake and Glutamate at Prescribed Doses
Tianeptine is an atypical antidepressant. Although its chemical structure resembles older tricyclic antidepressants, its effects involve several signaling systems.
Many drugs for low mood are selective serotonin reuptake inhibitors, or SSRIs. They slow serotonin reuptake, so more of it stays in the gap where brain cells meet. Old studies said that tianeptine did the reverse, and that it sped up serotonin uptake.
The FDA describes possible glutamate modulation as part of its antidepressant activity. Its mechanism is more complex than simply increasing or decreasing serotonin reuptake [1].
Opioid Receptor Effects and Dose-Related Risks
Tianeptine is a full mu opioid receptor agonist and a weak delta opioid receptor agonist. That activity is not limited to high doses [1].
Heroin, fentanyl, and oxycodone also activate mu opioid receptors. Oxycodone is the drug in percs. Shared receptor activity helps explain tianeptine’s opioid-like effects, although these drugs are not identical.
Higher doses of tianeptine can produce euphoria and increase the risk of serious poisoning, including respiratory depression, when breathing slows or stops. No dose of a tianeptine product is FDA-approved in the United States.
Effects of Tianeptine and Serious Harm
Like other psychoactive drugs sold outside drug stores, tianeptine products are hard to predict. What is in each one can vary a lot.
What the FDA Warns Consumers About
An FDA update titled “Tianeptine Products Linked to Serious Harm, Overdoses, Death” came out in 2025. People have felt restless, sleepy, or confused, or have had sweating, a fast heartbeat, and high blood pressure. Some felt sick or threw up, and in the worst cases, people stopped breathing, fell into a coma, or died.
These harms came after ingesting tianeptine alone and when it was mixed with other drugs, such as those for low mood. The FDA says to avoid all tianeptine products, even ones that claim to improve brain function. Products sold outside drug stores can hide other drugs, as fake blue oxycodone pills sold as M30s often do.
The FDA says tianeptine is not a lawful dietary ingredient and is not approved as a food additive. A supplement or research-chemical label does not establish safety or FDA approval [1].
What Poison Center Data Show
Tianeptine exposures reported to U.S. poison centers rose from 4 cases in 2013 to about 350 in 2024 [2]. These reports describe exposures, not the total number of people using the drug.
A 2024 CDC Morbidity and Mortality Weekly Report told of a group of people in New Jersey who got sick. It was severe illness from Neptune’s Fix tianeptine linked to lab-made cannabis drugs. Of the 17 who got sick, 13 had to go to intensive care [3].
Tests found these synthetic cannabinoid receptor agonists in some of the product. They act on the same brain sites as marijuana, and they were not on the label.
Dependence and Tianeptine Withdrawal
Daily tianeptine misuse can lead to tolerance and dependence. With dependence, the body gets used to the drug, so he feels sick when he stops. These changes overlap with the general signs of opioid use in teens.
Tianeptine withdrawal can resemble opioid withdrawal, with cravings, sweating, diarrhea, muscle aches, anxiety, nausea, and poor sleep. In a poison-center study covering 2015 through 2023, 22.5 percent of reported tianeptine exposures were classified as withdrawal. The DEA also cites a 1,400 percent increase in reports over that period [4].
Severe withdrawal has led to hospitalization. A teen who uses tianeptine regularly should receive a clinical assessment and a supervised plan for stopping.
Overdose and Naloxone
Tianeptine intoxication, or poisoning, can look like an opioid overdose. He may breathe very slowly or not at all, or be so deeply asleep that he will not wake up.
The DEA notes fatalities involving tianeptine. In the 2015 to 2023 study, 40.1 percent of cases needed a hospital stay, and 22.9 percent needed critical care [4].
Call 911 immediately and give naloxone if available, following the product instructions. Naloxone has reversed tianeptine overdoses in reported cases [4]. Repeat a dose after two to three minutes if normal breathing has not returned, and follow the dispatcher’s CPR instructions. Stay until help arrives. Hidden drugs add risk, just as fentanyl does in pressed pills.
Signs and Risk Factors Parents Can Watch For
Parents may find pills, powders, or small bottles of liquid “shots” labeled as supplements. The label may list tianeptine sodium, a salt form of the drug. A teen who uses it may seem sleepy, confused, or restless, or may sweat and feel sick to his stomach.
The FDA warns that people with a history of opioid use disorder may be particularly vulnerable to tianeptine misuse. Depression, anxiety, or other substance use also warrant assessment; they do not prove that a teen is using tianeptine [2].
Is Tianeptine Legal in Utah?
The DEA published a proposal on July 8, 2026, to place tianeptine in federal Schedule I [4]. A proposed rule is not a final scheduling action. Parents should check the current federal status because the rulemaking can change.
States have acted separately. Utah’s current controlled-substances law lists tianeptine in Schedule I, which also includes heroin [5]. State restrictions apply regardless of whether a federal scheduling proposal is final.
The DEA notes that state bans have not stopped online sales.
What Parents Can Do
If your son is hard to wake or breathing slowly, call 911 and give naloxone if you have it. If he seems well but you think he took tianeptine, call Poison Help at 1-800-222-1222. If he talks about hurting himself, call or text 988.
Later, talk with him calmly when he is sober. Ask what he took, how often, and whether he has had low mood or anxiety symptoms. Ask about other products too, such as codeine cough syrup mixed with soda.
Treatment for Tianeptine Use and Mental Health
A health care provider can assess his substance use, physical health, and mental health. Repeated use despite harm or difficulty controlling use may indicate a substance use disorder. The FDA recommends considering evidence-based care for opioid use disorder, depression, or anxiety when appropriate [1].
Care may include outpatient therapy, a structured program, or residential treatment, based on the teen’s needs. No medication is FDA-approved specifically for tianeptine use disorder. A qualified prescriber may consider medicines used for opioid use disorder, with careful attention to age, indications, and the individual situation. Family therapy can support care.
Frequently Asked Questions
Is Gas Station Heroin Actually Heroin?
Gas station heroin is a nickname for tianeptine, not heroin itself. Tianeptine activates opioid receptors and is not FDA-approved for any use. Misuse can cause dependence, withdrawal, and potentially fatal overdose.
Can Tianeptine Be Detected on a Drug Test?
Tianeptine may not show up on routine drug screens, according to the FDA, so a negative urine drug screen does not rule it out. Some labs can run special tests that look for it. If you are worried, tell his doctor what you suspect.
If your son is using tianeptine, ask a qualified clinician which level of care fits his needs. Residential treatment for teens can offer structure and support when appropriate. Our admissions team can discuss next steps. For free, confidential treatment referral, call the SAMHSA National Helpline at 1-800-662-4357.
This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. If you think someone is overdosing, call 911 right away.
Sources
- U.S. Food and Drug Administration. New “Gas Station Heroin” Tianeptine Product Trend (May 8, 2025). https://www.fda.gov/consumers/health-fraud-scams/new-gas-station-heroin-tianeptine-product-trend
- U.S. Food and Drug Administration. Tianeptine Products Linked to Serious Harm, Overdoses, Death (May 9, 2025). https://www.fda.gov/consumers/consumer-updates/tianeptine-products-linked-serious-harm-overdoses-death
- Centers for Disease Control and Prevention, MMWR. Notes from the Field: Cluster of Severe Illness from Neptune’s Fix Tianeptine Linked to Synthetic Cannabinoids, New Jersey, June to November 2023 (February 1, 2024). https://www.cdc.gov/mmwr/volumes/73/wr/mm7304a5.htm
- Drug Enforcement Administration, Federal Register. Schedules of Controlled Substances: Placement of Tianeptine in Schedule I, proposed rule (July 8, 2026). https://www.federalregister.gov/documents/2026/07/08/2026-13821/schedules-of-controlled-substances-placement-of-tianeptine-in-schedule-i
- Utah State Legislature. Utah Code 58-37-108, Schedules of Controlled Substances (effective May 6, 2026). https://le.utah.gov/xcode/Title58/Chapter37/C58-37-S108_2026050620260506.pdf
