Tropisetron: Review of Nootropic Benefits, Uses, Dosage, & Side Effects

Updated on January 30, 2024
 by — reviewed by Jason Williams, PhD (Contributor: George Collins / Editor: Yoko Hill)
A comprehensive review of Tropisetron's nootropic benefits, uses, dosage, and side effects.

Tropisetron, a prescription medication known for its effectiveness in managing post-operative and chemotherapy-induced nausea and vomiting, is now making waves in the nootropic community.

As a highly potent and selective competitive antagonist of the serotonin receptor 5-HT3 and selective α7 nicotinic receptor partial agonist, Tropisetron has shown significant effects on enhancing cognition.

What is Tropisetron?

Tropisetron is a potent medication that is commonly used to manage nausea and vomiting associated with chemotherapy or surgery. It’s often prescribed under the brand names Navoban or Setrovel.

Interestingly, Tropisetron is also gaining interest for its nootropic benefits. Users report improved memory function and focus, which can be linked to the drug’s influence on the serotonergic system and Alpha7 nicotinic receptors.


  • Effective against nausea and vomiting induced by chemotherapy or surgery
  • May improve cognitive function
  • Well-tolerated, with minimal side effects


  • May cause temporary side effects such as constipation or headaches
  • Not suitable for individuals with certain pre-existing medical conditions
  • Not to be used during pregnancy or breastfeeding without medical advice

Mechanism of Action

Tropisetron acts as a competitive antagonist at 5-HT3 receptors and also as a selective α7 nicotinic receptor partial agonist. These 5-HT3 receptors are found in the central nervous system and on peripheral neurons in the digestive tract. By blocking the action of serotonin on these receptors, Tropisetron can effectively prevent nausea and vomiting.

In terms of cognitive benefits, Tropisetron has shown promise in improving cognition in conditions characterized by learning disorders, such as Schizophrenia.(1) Furthermore, nootropic effects are also observed in primates, correlating with results found in healthy people given GTS-21, another α7 nicotinic receptor partial agonist.

The interaction between Tropisetron and neurotransmitters isn’t solely about controlling nausea. By influencing serotonin levels through 5-HT3 antagonism and selective α7 agonism, Tropisetron may enhance cognitive aspects like memory, learning, and mood regulation.(2)

Tropisetron has also been found to be neuroprotective, potentially due to its dampening of excitotoxic potential and its ability to stimulate calcium influx in a manner that promotes cognition.

In terms of pharmacokinetics, Tropisetron is well-absorbed after oral administration, with peak plasma concentration typically achieved within 2-3 hours. Its elimination half-life is approximately 6 hours, but its effects may persist for much longer.

Understanding Tropisetron’s pharmacokinetic properties can help users optimize their dosing regimen for maximum benefits. Moreover, Tropisetron has a shelf life of around 3 years.

With the evidence presented, Tropisetron’s potential as a nootropic is evident. It not only offers cognitive benefits but also encompasses a wide range of potential advantages, from improving cognitive function to providing generalized benefits to mental health.

Nootropic Benefits of Tropisetron

What many may not know is that Tropisetron is an effective nootropic with a potential range of cognitive-enhancing benefits.

As a nootropic, Tropisetron offers a plethora of potential benefits. Research suggests that it may enhance cognitive functions, such as memory and attention, by regulating the cholinergic system.

Since this system is involved in cognitive processes like learning and memory, Tropisetron could potentially help improve these functions.

Furthermore, it may also be effective in managing certain psychiatric conditions, including depression(3) and schizophrenia, thanks to its antagonistic properties on the 5-HT3 receptor.

Enhancing Cognitive Function

Tropisetron’s cognitive benefits stem from its dual action as a selective α7 nicotinic receptor partial agonist and a 5-HT3 antagonist.

By influencing serotonin levels and increasing acetylcholine in the brain, Tropisetron can enhance cognitive flexibility, allowing the brain to adapt to changes, process information efficiently, multitask, and engage in logical reasoning and problem-solving.

Improving Memory and Learning Abilities

Beyond its potential in enhancing general cognitive function, Tropisetron has shown promise in improving memory recall.

It strengthens neural pathways responsible for storing and retrieving information. Moreover, its nootropic effects aid in processing complex information more rapidly and efficiently.

Mood Regulation

Tropisetron’s role in mood regulation is underscored by its antidepressant effects and its ability to balance serotonin levels.

Research suggests that Tropisetron can provide relief for individuals suffering from depression or anxiety,(4) offering a calming effect that reduces stress levels and promotes emotional stability.(5)

Neuroprotective Effects

Tropisetron also possesses notable neuroprotective effects. It protects neuronal cells from premature degeneration seen in neurodegenerative diseases such as Alzheimer’s.(6)

This neuroprotection is attributed to its action on α7 nicotinic receptors, which release neurotrophic factors essential for neuronal growth and survival.

Tropisetron’s anti-inflammatory effects further enhance its neuroprotective capabilities.

Tropisetron’s Nootropic BenefitsExplanation
Enhances Cognitive FunctionWorks by improving cognitive flexibility and information processing ability through increased acetylcholine in the brain.
Improves Memory & Learning AbilitiesEnhances communication between neurons involved in memory and learning. Accelerates learning and adapting speed.
Provides Neuroprotective EffectsProtects neurons from premature degeneration in cognitive disorders. Anti-inflammatory effects further boost neuroprotection.

Uses of Tropisetron

Tropisetron, primarily used to prevent nausea and vomiting post-surgery or chemotherapy, has found a place in the world of cognitive enhancement. Let’s delve into its various uses.

Prevention of Post-Operative Nausea and Vomiting (PONV)

Tropisetron is commonly prescribed by doctors to patients undergoing surgery. Its primary function is to prevent PONV, a common complication after surgical procedures.

  • It works by blocking the action of serotonin, a chemical messenger in the brain that can trigger nausea and vomiting.
  • Patients usually take it before their surgery to reduce the likelihood of these symptoms.

Chemotherapy-Induced Nausea and Vomiting (CINV) Treatment

Similarly, tropisetron serves as an effective treatment for CINV.

  • Chemotherapy often leads to severe nausea and vomiting, significantly affecting patients’ quality of life.
  • By blocking serotonin receptors in the brain and gut, tropisetron helps manage these side effects.

Off-label Usage as a Nootropic Supplement

Beyond medical applications, tropisetron has gained popularity among individuals seeking cognitive enhancement.

  • Students use it for improved focus during study sessions.
  • Professionals utilize it for enhanced productivity at work.
  • Athletes employ it for better mental performance during competitions.

However, this off-label usage should be approached with caution due to potential side effects and limited research on long-term impact.

Use Cases Among Different Groups

The nootropic benefits of tropisetron are sought by diverse groups.

  • Students: Improved concentration during long hours of studying.
  • Professionals: Enhanced mental clarity leading to increased productivity.
  • Athletes: Better focus during training or competition enhancing overall performance.

These examples highlight how tropisetron’s cognitive-enhancing properties can benefit different sectors of society.

Research Studies on Therapeutic Applications

Researchers are exploring other potential therapeutic applications of tropisetron.

  • Studies have suggested its potential role in treating conditions like fibromyalgia and irritable bowel syndrome.
  • Some research points to its possible use in managing symptoms of depression and anxiety.

However, these findings are preliminary, and more extensive studies are needed to confirm these potential uses.

Where to Buy Tropisetron

Tropisetron, a popular nootropic, is available for purchase online at Everychem.

However, its legality varies by country or region.

Online Purchase Options

The easiest method to buy Tropisetron is through online platforms. One such platform is Everychem, a reputable online store that offers a wide range of nootropics including Tropisetron.

  • They provide detailed product information.
  • You can easily compare prices and check reviews before purchasing.
  • The site offers secure payment options and worldwide shipping.

However, remember that not all countries allow the importation of nootropics like Tropisetron due to varying legal restrictions.

Legality Varies by Country/Region

It’s important to understand that the legality of buying and using Tropisetron depends on your location. In some regions, you can freely purchase it without any issues. In others, you might need a prescription from a licensed healthcare provider.

For instance:

  • In the United States, it’s classified as an unapproved drug but not controlled.
  • In Canada and Australia, it’s considered a prescription medication.
  • Some European countries allow its sale over-the-counter while others don’t.

Before ordering Tropisetron online from Everychem or any other source, make sure you’re aware of your local laws regarding nootropics. This will help avoid potential legal complications.

Dosage of Tropisetron for Cognitive Enhancement

Determining the right dosage for Tropisetron is critical for reaping its potential benefits without experiencing detrimental side effects.

In a medical setting, Tropisetron is usually given at a dose of 2-5 mg once daily for treating nausea and vomiting related to chemotherapy or anesthesia.

Standard Dosage for PONV/CINV Treatment

The standard dosage for Tropisetron varies depending on individual health conditions, age, and other factors. For most adults undergoing chemotherapy or surgery, the typical dose ranges between 2 mg to 5 mg per day. This can be administered orally or intravenously.

  • For PONV: A single intravenous dose of 2 mg immediately before anesthesia.
  • For CINV: An initial dose of 5 mg orally or intravenously on the first day of chemotherapy.

Remember, these are general guidelines. Always consult with your healthcare provider before starting any new medication.

Nootropic Usage Dosage

Caution is advised against exceeding the recommended dosage range. The suggested dosage for cognitive enhancement purposes usually falls between 1mg to 3mg daily.

While this range may seem smaller than that for PONV/CINV treatment, it’s because nootropics require less to produce effects on cognition. Exceeding this limit could lead to unwanted side effects.

Start Low Increase Gradually

It’s crucial when starting Tropisetron – or any new supplement – to begin with a lower dose. This allows you to gauge how your body reacts to the substance without putting yourself at risk of severe side effects.

If you tolerate the lower dose well and wish to increase it for more pronounced benefits, do so gradually over time. This slow progression helps prevent adverse reactions while maximizing potential benefits.

Side Effects & Safety of Tropisetron

Although Tropisetron is generally well-tolerated, it is not without potential side effects. Typical side effects may include constipation, headache, dizziness, and transient increases in liver enzyme levels. These side effects are generally mild and subside with time.

Should they persist or worsen, users should seek immediate medical attention. As with all substances, it is important to use Tropisetron responsibly, ideally under the guidance of a healthcare provider to ensure its safe and effective use.

Side Effect CategorySpecific Side Effects
CommonHeadache, Constipation, Dizziness
Less CommonTachycardia, Skin rashes
RareHypersensitivity Reactions


Tropisetron, originally recognized as a potent antiemetic, has recently gained attention for its promising nootropic properties. Its dual action as a selective α7 nicotinic receptor partial agonist and a 5-HT3 antagonist allows it to enhance cognitive flexibility, memory recall, and overall cognitive function.

Research indicates its potential in mood regulation, with antidepressant effects that can provide relief for individuals suffering from depression or anxiety.

Beyond cognitive enhancement, Tropisetron also showcases remarkable neuroprotective effects, safeguarding neuronal cells from premature degeneration seen in conditions like Alzheimer’s.

Despite its multifaceted benefits, it’s essential to approach Tropisetron with caution, considering potential side effects such as headache, constipation, and fatigue.

Responsible usage and adherence to recommended dosages are crucial to ensure safety and efficacy.


How long does Tropisetron take to work?

Tropisetron starts working within 30 minutes to 2 hours after administration. Its effects can last up to 24 hours.

What is the elimination half-life of Tropisetron?

The elimination half-life of Tropisetron is approximately 6 to 8 hours. This means it takes about 6 to 8 hours for half of the drug to be eliminated from the body.

Can I stack Tropisetron with other nootropics?

Yes, Tropisetron can be stacked with other nootropics. However, it’s essential to consult a healthcare provider before starting any new medication regimen. This ensures safety and efficacy.

How should I store Tropisetron?

Tropisetron should be stored at room temperature, away from light and moisture. Do not store it in the bathroom or near a sink. Keep it out of reach of children and pets.

Sources, Studies, and Scientific Research
  1. Xia, Luyao et al. “One-day tropisetron treatment improves cognitive deficits and P50 inhibition deficits in schizophrenia.” Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology vol. 45,8 (2020): 1362-1368. doi:10.1038/s41386-020-0685-0 ↩
  2. Callahan, Patrick M et al. “Tropisetron sensitizes α7 containing nicotinic receptors to low levels of acetylcholine in vitro and improves memory-related task performance in young and aged animals.” Neuropharmacology vol. 117 (2017): 422-433. doi:10.1016/j.neuropharm.2017.02.025 ↩
  3. Hosseinzadeh, Ali et al. “Adenylyl Cyclase (AC) Mediates the Antidepressant-Like Effects of Tropisetron on a Mouse Model of Maternal Separation Stress.” Depression research and treatment vol. 2021 5586119. 22 Apr. 2021, doi:10.1155/2021/5586119 ↩
  4. Lecrubier, Y et al. “A randomized double-blind placebo-controlled study of tropisetron in the treatment of outpatients with generalized anxiety disorder.” Psychopharmacology vol. 112,1 (1993): 129-33. doi:10.1007/BF02247373 ↩
  5. Shalbafan, Mohammadreza et al. “Fluvoxamine combination therapy with tropisetron for obsessive-compulsive disorder patients: A placebo-controlled, randomized clinical trial.” Journal of psychopharmacology (Oxford, England) vol. 33,11 (2019): 1407-1414. doi:10.1177/0269881119878177 ↩
  6. Hashimoto, Kenji. “Tropisetron and its targets in Alzheimer’s disease.” Expert opinion on therapeutic targets vol. 19,1 (2015): 1-5. doi:10.1517/14728222.2014.983901 ↩