2C-B, also known by various names such as Tuci, Tusi, Nexus, Venus, Bees, and Erox, is a psychedelic substance and belonging to the phenethylamine class. It is often referred to as a psychedelic psychostimulant due to its combination of psychedelic and stimulant effects. 2C-B is commonly found in white powder or crystal form and can also be pressed into tablets.
The substance is frequently used at electronic music party goers at clubs, and ‘rave’ parties. 2C-B was developed by Alexander Shulgin in 1974 and described in the scientific literature in 1975. It emerged as a novel recreational designer drug and MDMA substitute in the mid-1980s.
Today, 2C-B is the most popular and widely used of the 2C psychedelics and is considered one of the most widely used designer chemicals. This article from Shanti Recovery and Wellness delves into exploring 2 CB: what it is, its effects, history, legal status, and considerations surrounding its use.
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Tuci or 2 CB: Its Composition and Classification as a Psychedelic Psychostimulant
2C-B is chemically known as 4-bromo-2,5-dimethoxyphenethylamine. It is structurally related to mescaline, a naturally occurring psychedelic found in peyote cactus. 2C-B is synthesized in laboratories and typically sold in powder or pill form. 2C-B is part of the ‘2C’ group of drugs, which includes other phenethylamines like 2C-C, 2C-P, 2C-E, and 2C-I.
It acts as a potent partial agonist at serotonin 5-HT2A and 5-HT2C receptors, primarily affecting serotonin receptors in the brain. The pharmacological action of 2C-B is produced through its interaction with these receptors, leading to its psychoactive effects. 2C-B is metabolized by the monoamine oxidase enzymes MAO-A and MAO-B, and it has relatively low oral bioavailability due to substantial first-pass metabolism.
Scientific research, including studies by Clara Pérez-Mañá, has explored the pharmacology, metabolism, and receptor interactions of 2C-B and related phenethylamines.
The drug has mild psychedelic effects and a failry rapid drug metabolism, dependent on the user’s body mass index and whether a high, medium, or low dose was taken.
What are the Effects of 2C-B? What Users Report

The effects of 2C-B are dose-dependent and can vary widely among individuals:
- Psychedelic Experience: Users may experience alterations in perception, mood, and consciousness. Visual and auditory hallucinations, as well as changes in sensory perception, are common. 2C-B produces effects similar to those of MDMA and other psychedelics like psilocybin or LSD, but its effects are often milder and more easily managed. For this reason, 2C-B is often referred to as a ‘beginner psychedelic’ and is considered more approachable for those new to psychedelic use.
- Emotional Effects: 2C-B can induce euphoria, empathy, and a heightened sense of connection with others. Its hybrid profile combines entactogenic and psychedelic properties, making it appealing in both recreational and therapeutic contexts.
- Physical Sensations: Enhanced sensory perception, increased heart rate, muscle tension, and changes in body temperature are reported effects.
- Therapeutic Potential: 2C-B has potential use in psychotherapy due to its manageable effects compared to other psychedelics. It has been used in psychedelic-assisted psychotherapy at doses of 15 to 30 mg orally.
- Duration: The effects of 2C-B typically last between 4 to 8 hours, with the peak occurring within 2 to 4 hours after ingestion. Some reports suggest effects can last up to twelve hours.
Research on 2C-B’s subjective effects often uses standardized questionnaires with multiple items, such as the Hallucinogenic Rating Scale (HRS), to assess different aspects of the experience and better understand patterns of psychedelic use and establish a visual analog scale for such comparisons.
What is the History of Tusi or 2 CB? Behind its Rise to Popularity and an Overall Cultural Context
As we touched on above, 2C-B was first synthesized in the 1970s by Alexander Shulgin, a renowned chemist and pharmacologist known for exploring the psychoactive properties of phenethylamines. In the 1980s and early 1990s, 2C-B was marketed as a medicine under the brand name Erox, sold over-the-counter as a sexual enhancer in some European countries.
It was first encountered as a novel recreational designer drug in the United States in 1985. From 1993 to 1996, 2C-B was legally sold in Southern Africa and used as an entheogen and traditional medicine by the Sangoma, Nyanga, and Amagqirha people.
Numerous analogues and derivatives of 2C-B have since been developed and have emerged as well-known novel designer drugs. It gained popularity in the underground psychedelic community for its unique effects and relatively mild psychedelic nature compared to other substances like LSD or psilocybin mushrooms.
What is the Legal Status of 2 CB and its Classification Among Narcotic Drugs?

The legal status of 2C-B varies by country. It is considered a controlled substance by authorities in many jurisdictions, with strict regulations on its possession, manufacture, and distribution.
In the United States, 2C-B became a controlled substance in 1994. In Canada, it is classified as a Schedule III substance under the Controlled Drugs and Substances Act. In Australia, 2C-B is controlled under List 1 and is also a schedule 9 drug, making its production, distribution, and use illegal. 2C-B is a controlled substance in Belgium, Brazil, and Denmark, where its production, distribution, and possession are illegal.
In Germany, it is controlled under the Betäubungsmittelgesetz (BtMG) as a prohibited substance. In Sweden, 2C-B is classified as a Schedule I substance, making its possession illegal. In Japan, 2C-B was scheduled in 1998, making its possession illegal. In Poland, it is classified as a Schedule I substance, with criminal penalties for possession.
Additionally, 2C-B was added to Schedule II of the United Nations Convention on Psychotropic Substances in 2001.
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What are the Top Considerations and Risks When Using 2 CB?
While 2C-B is sometimes perceived as less intense than other psychedelics, it still carries risks:
- Potential for Misuse: Like other psychedelics, 2C-B can be misused or abused, leading to psychological dependence and risky behaviors.
- Physical Health Risks: 2C-B produces moderate increases in blood pressure and heart rate, including effects on diastolic blood pressure and mild hypertension, which are generally lower than those produced by MDMA. High doses of 2C-B can be dangerous, especially when combined with other substances, and may lead to severe risks such as hyperthermia, seizures, severe brain swelling, and death. While there have been no reported deaths directly linked to 2C-B, deaths have occurred with other 2C drugs, highlighting the importance of caution and monitoring. The risks are particularly significant for patients with pre-existing health or mental health conditions.
- Psychological Effects: Individuals with a history of mental health conditions, such as schizophrenia or bipolar disorder, may experience exacerbation of symptoms or acute psychological distress.
Coming Down from 2C-B: Understanding the Comedown Phase

When you’re coming down from 2C-B, you’ll likely experience what is commonly known as the comedown phase, which can last several hours. During this time, common symptoms include tiredness, irritability, low mood, or even depression.
Many users report that 2C-B’s comedown feels less intense compared to other psychedelic drugs such as DMT or psilocybin. However, individual experiences can vary widely.
Risks During the After Effects: Psychological and Physical Considerations
It is important to be aware of potential risks during the comedown and after effects of 2C-B use. Some individuals may face panic attacks, confusion, or more serious psychological distress, especially if they have pre-existing mental illness or have taken high doses.
Mixing 2C-B with other drugs, including drug alcohol or certain medications, can increase the likelihood of negative experiences. To reduce risks, it is advisable to remain in a safe, comfortable environment and avoid combining psychoactive substances.
Proper Aftercare: Supporting Your Physical and Emotional Well-Being
After using 2C-B, proper aftercare is crucial to support recovery and well-being. Hydration and nourishing food intake are essential, alongside engaging in relaxing activities such as meditation or yoga.
Emotional support from trusted friends, family, or health care professionals can be invaluable in processing the experience and managing any lingering stress or negative experiences. Users should be mindful that stimulant effects from 2C-B can sometimes catch them off guard, even during the after effects.
Methods of 2 CB Use and Their Impact on Effects and Risks
While oral dose is the most common method of 2C-B administration, some users report snorting 2C-B for more intense effects. However, this route is associated with higher risks of adverse reactions and is generally not recommended.
Like other psychoactive substances, 2C-B carries both potential benefits and significant risks. The overall experience depends on multiple factors including mindset, environment, and individual health status.
What is the Legal Status and Ongoing Research on 2C-B?

2C-B is classified as a narcotic drug by the UN Commission on Narcotic Drugs and is regulated as a controlled substance in many countries. Despite its legal restrictions, 2C-B continues to be studied within the recreational drug market and scientific community.
Research into the acute pharmacological effects and psychedelic effects of 2C-B and other novel psychoactive substances is ongoing, with the Netherlands serving as a hub for many such studies. This growing body of knowledge helps to better understand both the risks and therapeutic potential of these psychoactive drugs.
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Approach 2C-B with Caution and Get Support if You Are Struggling
The comedown and aftercare period following 2C-B use deserves careful attention. Prioritizing self-care, seeking support when needed, and staying informed about both the risks and benefits are key to safer use. As research into the acute pharmacological effects and psychedelic effects of 2C-B advances, responsible use and awareness remain essential within the community.
Although less common than with other substances, Tuci can produce drug abuse patterns for some users, alongside dependence and withdrawal symptoms that begin once the acute effects subside.
If you or a loved one is struggling with 2 CB and needs support in the form of dual diagnosis or addiction treatment, please reach out confidentially for a consultation today.