| Type: | combo |
| Width: | 290px |
| Component1: | Ketamine |
| Class1: | Dissociative |
| Component2: | MDMA |
| Class2: | Stimulant |
| Component3: | Methamphetamine |
| Class3: | Stimulant |
| Component4: | Cocaine |
| Class4: | Stimulant |
| Component5: | Eutylone |
| Class5: | Stimulant |
| Component6: | Oxycodone |
| Class6: | Opioid |
| Legal Status: | In general: illegal |
| Routes Of Administration: | By mouth (oral), inhalation, insufflation |
| Bioavailability: | depends on combination |
| Metabolism: | depends on combination |
| Metabolites: | depends on combination |
| Elimination Half-Life: | range 5–30 hours; irrespective of route |
| Excretion: | Primarily kidney |
| Atc Prefix: | None |
| Synonyms: | pink cocaine, tuci, tucci, tussi, tucibi |
Tusi (also written as tussi, tuci, or tucibi) is a recreational drug that contains a mixture of different psychoactive substances, most commonly found in a pink-dyed powder form known as pink cocaine.[1] [2] Tusi is believed to have originated in Latin America around 2018.[3] Drug-checking studies in Latin America report tusi to be a concoction of ketamine, MDMA, cocaine, methamphetamine, caffeine, opioids, and other new psychoactive substances.[4] Existing literature suggests there is no standard proportioning of the constituent drugs in tusi.
Though the name "tusi" is phonetically similar to "2C", tuci is not the same psychoactive substance as 2C-B or more broadly, the 2C family. Tuci, according to the UN Office on Drugs and Crime, contained no 2C-B in most instances as of 2022.
Authorities in New York City report that lab-tested samples have very little or no cocaine. They say there are record numbers of overdoses and there is no way to know exactly what is in pink cocaine.[5] Because the drug usually contains a mix of uppers and downers, it is sometimes called a speedball.[6]
Authorities are trying to educate potential users who may not know how different ketamine is from cocaine. Cocaine is a stimulant and ketamine is a sedative-hallucinogenic anesthetic.[7] It does not mix well with alcohol.[8]
Drugs detected within the 19 samples of pink powder tusi/2C-B submissions to Erowid's DrugsData between 2019 and 2022:
| 94.7% | |||
| Ketamine precursor | Dissociative anaesthetic (precursor) | 84.2% | |
| 63.2% | |||
| 52.6% | |||
| 15.8% | |||
| 10.5% | |||
| 10.5% | |||
| 10.5% | |||
| Eutylone (bk-EBDB) | 10.5% | ||
| Antihelminthic (often used as an adulterant) | 10.5% | ||
| 5.3% | |||
| Local anaesthetic (often used as an adulterant) | 5.3% | ||
| 5.3% |