NutriDex

The Supplement Research Compendium

☠️

Tianeptine

"Gas station heroin" — a mu-opioid agonist sold as a nootropic, with no legitimate supplement use.

Banned / Harmful evidence ☠️Banned & Harmful
Evidence tier
Banned / Harmful
Research weight
Not supported
Citations
13 verified / 13
Classification
Banned & Harmful
What the evidence says. Linked to serious harm and/or banned in sport and many jurisdictions. Listed for awareness and safety only — NOT a recommendation.
Health warning. At the high doses sold in U.S. gas-station and online "nootropic" products, tianeptine acts as a mu-opioid receptor agonist that causes addiction, severe opioid-like withdrawal, respiratory depression, and death — it is not a safe supplement and is banned in several U.S. states.

What is Tianeptine?

Tianeptine is a banned or harmful substance marketed for no credible benefit exists for tianeptine as a dietary supplement or nootropic; its marketed claims (mood, focus, anxiety) are not supported by evidence at the unregulated doses sold in the u.s.. NutriDex grades the human evidence as Banned / Harmful. Tianeptine is an atypical tricyclic-structured antidepressant licensed at low doses (~37.5 mg/day) in parts of Europe, Asia, and Latin America, but it has never been approved by the FDA for any use and does not meet the legal definition of a dietary ingredient. Although historically described as a glutamatergic/serotonergic modulator, it is now established to be a full agonist at the mu-opioid receptor (and a weaker delta-opioid agonist), and this opioid activity dominates at the high doses sold in U.S. "gas station" and online "nootropic" products. At those doses it produces euphoria, tolerance, physical dependence, classic opioid-like withdrawal, respiratory depression, and death, earning the street name "gas station heroin." U.S. poison-center exposure calls rose sharply (from a handful per year before 2014 to dozens annually by 2017 and far higher since), and the FDA has issued repeated consumer warnings, while numerous states (including Alabama, Florida, Georgia, Indiana, Michigan, Minnesota, Mississippi, Ohio, Tennessee, and others) have banned it. There is no legitimate supplement or nootropic use for tianeptine, and the evidence tier for such use is best described as none/banned.

Marketed Claims (unproven)

No credible benefit exists for tianeptine as a dietary supplement or nootropic; its marketed claims (mood, focus, anxiety) are not supported by evidence at the unregulated doses sold in the U.S.
As a licensed prescription antidepressant in some European, Asian, and Latin American countries (brand names Stablon/Coaxil), low therapeutic doses (~37.5 mg/day) treat major depression — but this is a regulated medical use, not a supplement use, and is unavailable in the U.S.
Any perceived 'cognitive' or 'euphoric' effect from gas-station products is opioid receptor activation, i.e. the same mechanism as drug intoxication, not a health benefit.

Dosing & Compounds

Use & Legality
No safe supplement dose exists. The licensed antidepressant dose abroad is 12.5 mg three times daily (~37.5 mg/day); abused U.S. products are taken at 75–10,000 mg/day, where opioid agonism, dependence, and overdose dominate. Avoid entirely.
Active Compounds
Tianeptine (free acid)Tianeptine sodium saltTianeptine sulfate (extended-release salt favored in misuse products)

Safety & Cautions

DANGER — do not use. Tianeptine is a mu-opioid receptor agonist at the doses sold in the U.S., with high potential for addiction, severe opioid-like withdrawal (anxiety, sweating, tachycardia, agitation, vomiting, diarrhea), respiratory depression, coma, and death; naloxone may be needed for overdose. It is NOT an FDA-approved drug or a legal dietary supplement, and it is banned or scheduled in many U.S. states. Absolutely avoid combining with other CNS depressants — opioids, benzodiazepines, alcohol, or gabapentinoids — as this sharply raises the risk of fatal respiratory depression; deaths have occurred with adulterated products such as "Neptune's Fix" (which also contained synthetic cannabinoids). Pregnant or breastfeeding individuals must avoid it (neonatal opioid withdrawal syndrome has been reported); people with a history of substance use disorder, opioid dependence, depression, or psychiatric illness are at especially high risk. Discontinuation after regular use should be done under medical supervision, as withdrawal mirrors opioid withdrawal and case reports describe management with buprenorphine or methadone. If you or someone else has used these products and shows sedation, slowed breathing, or unresponsiveness, seek emergency care immediately (U.S.: call 911 or Poison Control at 1-800-222-1222). Educational only — always check with your doctor or pharmacist before combining Tianeptine with any medicine.

Evidence & Risk Findings ★ 13 studies

Systematic review N=52 cases (25 studies) ✓ Full text
A 2025 systematic review of tianeptine misuse found overdose in 35% of cases, opioid-like withdrawal in 42% (treated with buprenorphine, benzodiazepines, or naloxone), and a 13% fatality rate, confirming a substantial addiction and mortality burden from unregulated products.
Systematic review BMC Public Health systematic review 2025 ('Gas station heroin') ✓ PubMed
PRISMA systematic review of human reports of tianeptine misuse found tianeptine acts as a mu-opioid receptor agonist; ~58% of users progressed to habitual misuse with rapid dose escalation, tolerance, and opioid-like withdrawal, often requiring buprenorphine/naloxone management.
Regulatory safety warning FDA consumer safety communication ✓ Source
The FDA reaffirmed (2023–2025) that tianeptine is not approved for any use, is not a lawful dietary ingredient, and warns consumers not to purchase or use any tianeptine product, citing risks of agitation, coma, respiratory depression, seizure, and death.
Meta-analysis Cipriani et al. 2018 (Lancet network meta-analysis) ✓ PubMed
In the landmark NMA of 21 antidepressants (522 trials, 116,477 patients), tianeptine was significantly more effective than placebo for acute major depression (OR 1.37, 95% CrI 1.05-1.81) and ranked among the more efficacious agents, with acceptability not significantly different from placebo.
Meta-analysis Wagstaff/Kasper et al. 2004 (tianeptine vs SSRI meta-analysis) ✓ PubMed
Pooled analysis of 5 RCTs (n=1348; tianeptine vs fluoxetine, paroxetine, sertraline) found no significant difference in MADRS total score or responder rate, indicating tianeptine is at least as effective as SSRIs short-term, with a trend toward better tolerability.
RCT Tianeptine placebo-controlled RCT in elderly 2018 ✓ PubMed
Double-blind placebo-controlled trial in older depressed patients: tianeptine improved depressive symptoms with a placebo-tianeptine difference of 3.84 points on the HDRS-17 total score (P<.001).
Observational Journal of Medical Toxicology 2025 ✓ PubMed
Among 892 single-substance tianeptine exposures reported to US poison centers (2015-2023), the exposure rate rose 1,400%; 51.5% had moderate and 12.0% major effects, 40.1% required medical admission (22.9% to critical care).
Observational Journal of Medical Toxicology 2025 (NJ outbreak) ✓ Full text
A New Jersey outbreak (June 2023-Feb 2024) involved 41 calls and 34 patients exposed to Neptune's Fix tianeptine products adulterated with synthetic cannabinoids; 97% had altered mental status, 41% seizures, ~50% required intubation, and 65% needed ICU admission.
Preclinical safety study Animal study (rats and mice) ✓ PubMed
Tianeptine produced dose-dependent opioid-like adverse effects including respiratory depression, naloxone-reversible analgesia, and a withdrawal/dependence profile, providing direct experimental confirmation of its abuse and overdose liability.
Case report Case report (mother–infant) ✓ PubMed
A 2024 case report documented neonatal opioid withdrawal syndrome in an infant after prenatal maternal use of a tianeptine-containing supplement, with symptoms resistant to phenobarbital but responsive to morphine, illustrating that the products carry true opioid dependence risk including in utero.
Cohort El Zahran/CDC MMWR 2018 (National Poison Data System) ✓ PubMed
Surveillance of U.S. poison-center tianeptine exposures, 2000-2017, documented an exponential rise (from <1/year pre-2013 to 38 in 2015 and 83 in 2016); cases clustered in adults with neurologic, cardiovascular, and gastrointestinal toxicity and frequent co-exposure to other substances, signaling emerging abuse/dependence.
Surveillance (CDC MMWR) NPDS surveillance, 2000–2017 ✓ Source
CDC MMWR surveillance reported tianeptine poison-center exposure calls rising from 5 in 2014 to 83 in 2016 and 81 in 2017 (vs. only 11 total during 2000–2013), a statistically significant increase (p<0.001) with opioid-like toxicity, signaling an emerging public-health risk.
Preclinical mechanistic study Mechanistic study (mice) ✓ PubMed
Tianeptine's antidepressant-like and reward behaviors were abolished in mu-opioid receptor knockout mice, demonstrating that its central effects require direct mu-opioid receptor agonism rather than a purely monoaminergic mechanism.

Common questions about Tianeptine

What is Tianeptine used for?

Tianeptine is most often marketed for No credible benefit exists for tianeptine as a dietary supplement or nootropic; its marketed claims (mood, focus, anxiety) are not supported by evidence at the unregulated doses sold in the U.S., As a licensed prescription antidepressant in some European, Asian, and Latin American countries (brand names Stablon/Coaxil), low therapeutic doses (~37.5 mg/day) treat major depression — but this is a regulated medical use, not a supplement use, and is unavailable in the U.S., Any perceived 'cognitive' or 'euphoric' effect from gas-station products is opioid receptor activation, i.e. the same mechanism as drug intoxication, not a health benefit.. "Gas station heroin" — a mu-opioid agonist sold as a nootropic, with no legitimate supplement use.

Does Tianeptine work — what does the evidence say?

Banned / Harmful evidence. Linked to serious harm and/or banned in sport and many jurisdictions. Listed for awareness and safety only — NOT a recommendation. Tianeptine is an atypical tricyclic-structured antidepressant licensed at low doses (~37.5 mg/day) in parts of Europe, Asia, and Latin America, but it has never been approved by the FDA for any use and does not meet the legal definition of a dietary ingredient. Although historically described as a glutamatergic/serotonergic modulator, it is now established to be a full agonist at the mu-opioid receptor (and a weaker delta-opioid agonist), and this opioid activity dominates at the high doses sold in U.S. "gas station" and online "nootropic" products. At those doses it produces euphoria, tolerance, physical dependence, classic opioid-like withdrawal, respiratory depression, and death, earning the street name "gas station heroin." U.S. poison-center exposure calls rose sharply (from a handful per year before 2014 to dozens annually by 2017 and far higher since), and the FDA has issued repeated consumer warnings, while numerous states (including Alabama, Florida, Georgia, Indiana, Michigan, Minnesota, Mississippi, Ohio, Tennessee, and others) have banned it. There is no legitimate supplement or nootropic use for tianeptine, and the evidence tier for such use is best described as none/banned.

What is the typical dose of Tianeptine?

No safe supplement dose exists. The licensed antidepressant dose abroad is 12.5 mg three times daily (~37.5 mg/day); abused U.S. products are taken at 75–10,000 mg/day, where opioid agonism, dependence, and overdose dominate. Avoid entirely.

Is Tianeptine safe? Any cautions or side effects?

DANGER — do not use. Tianeptine is a mu-opioid receptor agonist at the doses sold in the U.S., with high potential for addiction, severe opioid-like withdrawal (anxiety, sweating, tachycardia, agitation, vomiting, diarrhea), respiratory depression, coma, and death; naloxone may be needed for overdose. It is NOT an FDA-approved drug or a legal dietary supplement, and it is banned or scheduled in many U.S. states. Absolutely avoid combining with other CNS depressants — opioids, benzodiazepines, alcohol, or gabapentinoids — as this sharply raises the risk of fatal respiratory depression; deaths have occurred with adulterated products such as "Neptune's Fix" (which also contained synthetic cannabinoids). Pregnant or breastfeeding individuals must avoid it (neonatal opioid withdrawal syndrome has been reported); people with a history of substance use disorder, opioid dependence, depression, or psychiatric illness are at especially high risk. Discontinuation after regular use should be done under medical supervision, as withdrawal mirrors opioid withdrawal and case reports describe management with buprenorphine or methadone. If you or someone else has used these products and shows sedation, slowed breathing, or unresponsiveness, seek emergency care immediately (U.S.: call 911 or Poison Control at 1-800-222-1222).

How many studies support Tianeptine?

NutriDex cites 13 sources for Tianeptine, graded "Banned / Harmful".

Cite this page
APA

Peh, D. (2026). Tianeptine: Benefits, Dosage, Side Effects & Evidence. NutriDex — The Supplement Research Compendium. Retrieved 26 Jun 2026, from https://nutridex.info/s/tianeptine

BibTeX
@misc{nutridex_tianeptine,
  author       = {Peh, Daryl},
  title        = {Tianeptine: Benefits, Dosage, Side Effects \& Evidence},
  year         = {2026},
  howpublished = {NutriDex --- The Supplement Research Compendium},
  url          = {https://nutridex.info/s/tianeptine},
  note         = {Reviewed by Dr Daryl Peh, MBBS Singapore, MMed FM. Accessed 2026-06-26}
}

For medical claims, citing the underlying primary studies linked above is preferred. NutriDex is an educational reference, not medical advice.

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