Tianeptine (Zaza Pills): What Is It, Effects, & Risks

Tianeptine, often called ZaZa or “gas station heroin,” is a powerful antidepressant that acts on opioid receptors. Tianeptine (ZaZa) is an antidepressant with opioid-like effects that is not approved for use in the U.S. [1] [2]. It was originally developed to treat depression and anxiety and is legally prescribed in some countries, but in the U.S., it is sold as a supplement or over-the-counter product. Street names for tianeptine include Zaza, Tianna, Tianna Red, Pegasus, and Neptune’s Fix [4]. These nicknames can make it sound harmless, but tianeptine is unregulated and can be extremely dangerous when misused.

What are ZaZa pills used for?

ZaZa pills were intended as an antidepressant, but in the U.S., many people misuse them for an opioid-like high. In countries where tianeptine is legal, doctors prescribe it for depression or anxiety. However, U.S. consumers often take ZaZa pills hoping to get a “legal high” or to self-treat pain or emotional distress. 

At low doses, tianeptine can improve mood, but in high doses it creates a strong euphoria and sedation similar to heroin or oxycodone [3]. This misuse is very dangerous and can quickly lead to addiction and overdose.

What is ZaZa drug slang for?

“ZaZa” is a slang term for tianeptine. People also call it “Zaza,” “Tianna,” “gas station dope,” or even “gas station heroin” [4]. These names come from the fact that tianeptine products are often sold in gas stations or convenience stores without a prescription. Other brand or product names you may see include Neptune’s Fix, Pegasus, and TD Red [4]. Remember that all of these names refer to the same active drug, tianeptine.

What effects do ZaZa pills have?

ZaZa causes opioid-like effects in the body and mind. Users often feel relaxed, calm, and even euphoric after taking ZaZa. In small doses, it may simply elevate mood, but in larger doses, it acts like a sedative. Common side effects of ZaZa include nausea, constipation, dizziness, drowsiness, and dry mouth. For example, you might experience a sense of well-being or sedation, but also feel queasy or struggle to focus. In high doses, ZaZa slows breathing and heart rate, and can cause confusion or fainting [3]. Long-term misuse can also worsen anxiety or depression, and it may even produce hallucinations or extreme agitation if someone suddenly stops taking it [3].

• Common side effects: Nausea, vomiting, constipation, dizziness, and drowsiness [3].

• Serious side effects: Overdose signs include very slow breathing, severe confusion, loss of consciousness, and coma [4]. ZaZa can also affect the heart (causing rapid or very slow heart rate) and the liver. Chronic misuse may lead to lasting mood problems and organ damage.

How long does ZaZa (tianeptine) last?

ZaZa’s effects kick in within about 30-60 minutes, and the main “high” lasts roughly 3-4 hours. When someone takes tianeptine, they usually start feeling relaxed or high in under an hour [5]. The peak effect happens a couple of hours after taking it, and then the strong effects fade over the next few hours. In total, the drug can stay in your body for most of the day. You might feel residual drowsiness or mild effects for up to 8-10 hours. For comparison, an LSD trip can last 6-12 hours, but ZaZa is much shorter. Its relatively fast metabolism (with a half-life of about 2.5 hours) means that most of the drug leaves the system within a day [5].

• Timeline of ZaZa: Effects start ~0.5-1 hour after ingestion [5].

• Peak high: About 1-3 hours in.

• Duration: Strong effects for ~3-4 hours, with milder after-effects lingering up to 8-10 hours.

Because the high doesn’t last long, some users redose frequently, which increases the risk of overdose and dependence.

How addictive is ZaZa (tianeptine)?

ZaZa is highly addictive, and people can become dependent very quickly. Tolerance builds fast, so users need more of it over time to feel the same effects [3]. In fact, some cases report that people became hooked within just a few weeks of regular use. Once addicted, stopping ZaZa leads to intense cravings and withdrawal. Many people with opioid addiction have switched to tianeptine when other drugs were not available, and they often find it just as hard to quit [3].

• Tianeptine works on the brain’s opioid system [1] [2], which makes addiction very likely.

• Addiction symptoms include strong cravings, needing to use more ZaZa to feel normal, and life disruptions (work, school, relationships).

• Tolerance can develop in as little as a few weeks, meaning the dose required can increase significantly [3].

What is tianeptine (ZaZa) withdrawal like?

Stopping ZaZa suddenly causes intense opioid-like withdrawal symptoms. People addicted to tianeptine report withdrawal signs similar to heroin or opioid withdrawal [2] [3]. This can include severe anxiety, restlessness, shaking, sweating, and feeling very “flu-ish.” A medical study found that patients going through ZaZa detox experienced chills, sweating, muscle aches, severe anxiety, and depression. Other common withdrawal symptoms are nausea, diarrhea, tremors, insomnia, and agitation.

Examples of ZaZa withdrawal symptoms:

• Anxiety and agitation: feeling very nervous or unable to relax.

• Shaking (tremors) and sweating: even when not hot.

• Muscle aches and chills: similar to having the flu.

• Nausea or vomiting: upset stomach or vomiting.

• Sleeping problems: insomnia or restlessness.

Withdrawal can be severe and may last several days to weeks. Medical detox (often using medications like buprenorphine) is usually recommended because it can make withdrawal safer and more comfortable.

Can you overdose on ZaZa (tianeptine)?

Yes. Taking too much ZaZa can be deadly. An overdose of tianeptine is very dangerous because it acts like a potent opioid. Signs of overdose include extreme drowsiness, very slow or troubled breathing, confusion, and loss of consciousness. In severe cases, overdose can lead to coma or death. The FDA and poison centers have documented cases of seizures, respiratory failure, and death from ZaZa overdose [1] [4].

Warning signs of overdose:

• Respiratory depression: breathing becomes very slow or stops.

• Loss of consciousness: the person can’t be awakened.

• Seizures or unconsciousness: severe brain symptoms.

If you suspect an overdose, call emergency services immediately. Naloxone (the opioid overdose antidote) can reverse tianeptine overdose, but it must be given quickly.

Is ZaZa (tianeptine) illegal?

ZaZa is not approved or controlled at the federal level, but it is highly regulated due to safety concerns. In the United States, tianeptine has never been approved by the FDA for medical use. That means it’s technically unscheduled nationally [1], but the FDA has issued strong warnings against its use [4]. Some states have responded by banning or scheduling ZaZa on their own: for example, Alabama, Tennessee, and Ohio prohibit its sale [1].

• The FDA has warned consumers not to buy any tianeptine products [4]. It does not recognize tianeptine as a safe supplement or drug.

• Because it’s often sold as a “research chemical” or supplement, many users assume it’s legal. In fact, many retailers agreed to remove Neptune’s Fix and other tianeptine products after FDA alerts in 2023-2025 [4].

• Always check local laws, as some states may have stricter restrictions on ZaZa.

How is ZaZa (Tianeptine) different from kratom?

Tianeptine (ZaZa) is a synthetic drug, while kratom is a natural plant; they work differently in the body. Both substances have opioid-like effects, but their origins and typical effects differ. Kratom comes from a Southeast Asian tree and contains natural alkaloids. At low doses, kratom can actually act like a stimulant, making users more alert and energetic [6]. At high doses, kratom becomes sedating and can relieve pain. Because kratom products are unregulated, the dose can vary widely [6].

ZaZa (tianeptine), by contrast, is an artificial chemical that targets the opioid system directly. Its effects are generally consistent: it causes euphoria, relaxation, and sedation, more like taking an opioid pill. Another key difference is legality: the FDA has explicitly warned against tianeptine use, while kratom, though also unapproved, is federally unscheduled (some states have banned it too). Overall:

• Origin: Kratom is a plant leaf; ZaZa is a synthetic drug.

• Effects: Kratom can be stimulating or sedating depending on dose [6]; ZaZa mainly causes a tranquil, opioid-like high.

• Safety: Both carry risks of addiction, but kratom’s effects can be unpredictable due to variable alkaloid levels. Tianeptine has a clearly documented risk of severe overdose and death [1] [4].

When choosing between them, neither is safe, but medical data on tianeptine’s harms is more robust.

FAQs

What is the ZaZa drug used for?

ZaZa is tianeptine, an antidepressant made initially for depression and anxiety. In the U.S., it’s mostly misused to get high or self-treat pain and mood, not for any approved medical purpose.

 

How long do ZaZa pills last in your system?

ZaZa’s main effects last only a few hours. People feel its impact in 30-60 minutes, the “high” peaks by 2-3 hours, and wears off by 4-5 hours. However, drug testing can detect tianeptine for longer, and some effects like sedation may linger up to 8-10 hours.

 

What does “ZaZa” slang mean?

“ZaZa” is just street slang for tianeptine. It doesn’t refer to a different drug – it’s simply a nickname. Other slang names include Zaza, Tianna, gas station dope, and gas station heroin.

Is ZaZa (tianeptine) illegal?

Tianeptine (ZaZa) is not FDA-approved and is banned or controlled in many places. While it’s not a scheduled drug nationally, the FDA has issued warnings that it’s unsafe for any use. Some states (like AL, TN, OH) have outlawed it. So you can find it sold as a supplement, but it’s essentially illegal to sell it as a drug.

 

What are tianeptine (ZaZa) withdrawal symptoms?

Stopping ZaZa causes withdrawal similar to opiates, often with flu-like symptoms. Common withdrawal symptoms include intense anxiety, chills or goosebumps, muscle aches, sweating, nausea, and insomnia. People also report feeling very restless or agitated. These symptoms can be severe and may require medical help to manage.

Get Help with Addiction

If you or someone you know is struggling with ZaZa (tianeptine) or any substance abuse, help is available. Here at Alliance Recovery, our team has extensive knowledge of addiction treatment, with many of us having gone through recovery ourselves. We are passionate about helping others find a path to a healthier life. 

 

When you come to Alliance Recovery, you’ll receive:

• Individual and group therapy tailored to your needs.

• A supportive, sober community.

• Comprehensive aftercare planning and career assistance.

Call our treatment team at (844) 287-8506 to get started.

Sources

[1] https://www.deadiversion.usdoj.gov/drug_chem_info/tianeptine.pdf

[2] https://www.cdc.gov/mmwr/volumes/67/wr/mm6730a2.htm

[3] https://pmc.ncbi.nlm.nih.gov/articles/PMC10359047/

[4] https://www.fda.gov/drugs/drug-safety-and-availability/fda-warns-consumers-not-purchase-or-use-any-tianeptine-product-due-serious-risks

[5] https://pubmed.ncbi.nlm.nih.gov/2341111/

[6] https://www.mayoclinic.org/diseases-conditions/prescription-drug-abuse/in-depth/kratom/art-20402171