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Deschloroketamine

Deschloroketamine molecule structureDeschloroketamine molecule structure
2'-Oxo-PCM
DCK, 2'-Oxo-PCM, O-PCM, DXE
Psychoactive Class
Chemical Class

Deschloroketamine is a dissociative research chemical of the arylcyclohexylamine class. Structurally analogous to ketamine but lacking the chlorine substitution on its phenyl ring, it produces dissociative, anesthetic, and hallucinogenic effects. It is reported to be more potent than ketamine with a longer duration of action.1 The substance is primarily available through online research chemical vendors as a designer drug.

Dosage & Duration

Dosage

Doses are population estimates that vary widely between individuals.

Threshold~10 mg
Light10-20 mg
Moderate20-30 mg
Strong30-50 mg
Heavy50+ mg

Duration

Onset10-30 minutes
Come Up30-60 minutes
Peak1.5-2.5 hours
Offset1-2 hours
After Effects3-24 hours
Total4-6 hours

Subjective Effects

Legacy content. A statistically backed ontology from Mindstate Design Labs is coming soon.

Effects vary widely by individual, dose, and context.

Forked from Subjective Effect Documentation work byJosie Kins August 2016.

See also: Dissociative Intensity Scale, Subjective Effects of Dissociatives

Reagent Testing

Expected colorimetric results for common reagent tests. Colors show reaction change over 1–2 minutes.

Mecke(ME)
white → brown1
Liebermann(LB)
white → yellow2
Froe(FR)
white → brown2
Morr(MO)
pink2 → blue2
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Pharmacology

Pharmacodynamics

In experimental receptor assays, deschloroketamine antagonized recombinant human NMDA receptors with activity comparable to ketamine; the S-enantiomer was more potent than the R-enantiomer. Rat experiments also found ketamine-like locomotor stimulation, place preference, and disruption of prepulse inhibition. These animal findings describe hazard-relevant experimental effects and must not be converted into human dose or effect predictions.citation needed

Pharmacokinetics

Human pharmacokinetics remain uncharacterized. After subcutaneous administration in Wistar rats, deschloroketamine reached maximum brain levels at 30 minutes and remained high at 2 hours. Rat studies identified nordeschloroketamine, trans-dihydrodeschloroketamine, and cis- and trans-dihydronordeschloroketamine. Recombinant CYP2B6 can N-demethylate deschloroketamine in vitro, but this does not establish the dominant enzyme or clearance pathway in humans.2

Metabolitesnone documented yet

Interactions

Dangerous

Highest risk

These combinations are considered extremely harmful and should always be avoided. Reactions to these drugs taken in combination are highly unpredictable and have a potential to cause death.

Caution

Use caution

These combinations are not usually physically harmful, but may produce undesirable effects, such as physical discomfort or overstimulation. Extreme use may cause physical health issues. Synergistic effects may be unpredictable. Care should be taken when choosing to use this combination.

AmphetaminesBenzodiazepinesCocaineMAOIsPregabalin
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Tolerance

Tolerance timelines are rules of thumb, not exact schedules, and vary widely between individuals and use patterns.

Full Tolerance
With prolonged or repeated DCK use, tolerance can develop to multiple effects, so comparable responses may require higher doses over time.
Baseline Reset
1-2 weeks
Half Tolerance
3-7 days
Cross Tolerance

Dissociatives

Harm Potential

Addiction & Dependence

Psychological

Moderate

With repeated use, deschloroketamine may present a moderate addiction risk, carries meaningful abuse potential, and may lead to psychological dependence. Reports also describe compulsive redosing during use.

Physical

Low

When addiction develops, cravings and withdrawal effects may occur upon sudden cessation of use, though the severity and nature of physical withdrawal symptoms are not well-characterized.

Toxicity

Urinary System

Chronic frequent use may cause bladder and urinary tract problems similar to those seen with ketamine, including urinary frequency, urgency, pelvic and bladder pain, hematuria, and incontinence; these effects appear to occur to a lesser extent than with ketamine and can be avoided by limiting use to occasional rather than daily or weekly consumption.

Antibiotic Function
Possible

Antibacterial properties have been speculated but only minimally investigated. If real, prolonged frequent use could potentially disrupt gut microbiome or affect immune function, though this has not been confirmed as a concern at reasonable low-frequency use levels.

Psychosis Risk

Dissociatives including DCK carry a risk of adverse psychological reactions such as mania, hypomania, delusions, and confusion. Mania is listed as a potential acute cognitive effect. Risk may be elevated when combined with stimulants.

History & Culture

Discovery and Synthesis

Deschloroketamine was first described in a 1966 patent filed by Calvin Stevens at Parke-Davis in Michigan. Stevens, who is also credited with the synthesis of ketamine and phencyclidine, outlined the preparation methods for this structurally related compound.citation needed Despite this early

Trip Reports

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Legality

International

Deschloroketamine is not listed in the schedules of the 1961, 1971 or 1988 United Nations drug conventions. The UNODC substance record identifies deschloroketamine as a phencyclidine-type new psychoactive substance but does not assign an international scheduling entry; national controls may nevertheless apply.

By Country

Illegal22
Argentina flagArgentinaIllegal
Australia flagAustraliaIllegal (analog/blanket ban)
Belgium flagBelgiumIllegal
Canada flagCanadaIllegal (analog/blanket ban)
Chile flagChileIllegal
China flagChinaIllegal
Czech Republic flagCzech RepublicIllegal
Denmark flagDenmarkIllegal
Germany flagGermanyIllegal
Indonesia flagIndonesiaIllegal
Israel flagIsraelIllegal
Italy flagItalyIllegal
Japan flagJapanIllegal
Latvia flagLatviaIllegal
New Zealand flagNew ZealandIllegal (analog/blanket ban)
Poland flagPolandIllegal
Russia flagRussiaIllegal (analog/blanket ban)
Singapore flagSingaporeIllegal
South Africa flagSouth AfricaIllegal (analog/blanket ban)
South Korea flagSouth KoreaIllegal (analog/blanket ban)
Sweden flagSwedenIllegal
United Kingdom flagUnited KingdomIllegal
Controlled / restricted4
Austria flagAustriaRestricted
Finland flagFinlandRestricted
Ireland flagIrelandRestricted
Switzerland flagSwitzerlandRestricted
Not scheduled2
United States flagUnited StatesNot scheduled
Netherlands flagNetherlandsNot scheduled

References

Citations

  1. Frison G, Zamengo L, Zancanaro F, Tisato F, & Traldi P. (2016-01-15). Characterization of the designer drug deschloroketamine (2-methylamino-2-phenylcyclohexanone) by gas chromatography/mass spectrometry, liquid chromatography/high-resolution mass spectrometry, multistage mass spectrometry, and nuclear magnetic resonance. Rapid Communications in Mass Spectrometry, 30(1), 151-160. https://doi.org/10.1002/rcm.742512
  2. Halogen Substitution Influences Ketamine Metabolism by Cytochrome P450 2B6: In Vitro and Computational Approaches. pmc.ncbi.nlm.nih.gov (n.d.). https://doi.org/10.1021/acs.molpharmaceut.8b012141
  3. Decreto 560/2019, Anexo I (sustituido por Decreto 122/2026), read with Ley 23.737. argentina.gob.ar (n.d.). https://www.argentina.gob.ar/normativa/nacional/decreto-122-2026-423520/texto1
  4. Decreto 560/2019, Anexo I (sustituido por Decreto 122/2026), read with Ley 23.737. argentina.gob.ar (n.d.). https://www.argentina.gob.ar/normativa/nacional/decreto-560-2019-326675/actualizacion1
  5. Decreto 560/2019, Anexo I (sustituido por Decreto 122/2026), read with Ley 23.737. argentina.gob.ar (n.d.). https://www.argentina.gob.ar/normativa/nacional/ley-23737-138/actualizacion1
  6. Decreto 560/2019, Anexo I (sustituido por Decreto 122/2026), read with Ley 23.737. boletinoficial.gob.ar (n.d.). https://www.boletinoficial.gob.ar/detalleAviso/primera/338915/20260302?anexos=11
  7. Decreto 560/2019, Anexo I (sustituido por Decreto 122/2026), read with Ley 23.737. mpf.gob.ar (n.d.). https://www.mpf.gob.ar/procunar/files/2019/09/Anexo-decreto-122-2026.pdf1
  8. Criminal Code Act 1995 (Cth), ss 301.1, 301.4 and 301.9; Criminal Code Regulations 2019, Schedule 1 cl 1 item 146 and Schedule 2 cl 1 item 110. legislation.gov.au (n.d.). https://www.legislation.gov.au/C2004A04868/2026-06-30/2026-06-30/text/original/epub/OEBPS/document_2/document_2.html1
  9. Criminal Code Act 1995 (Cth), ss 301.1, 301.4 and 301.9; Criminal Code Regulations 2019, Schedule 1 cl 1 item 146 and Schedule 2 cl 1 item 110. legislation.gov.au (n.d.). https://www.legislation.gov.au/F2019L00561/2025-12-13/2025-12-13/text/original/epub/OEBPS/document_1/document_1.html1
  10. Criminal Code Act 1995 (Cth), ss 301.1, 301.4 and 301.9; Criminal Code Regulations 2019, Schedule 1 cl 1 item 146 and Schedule 2 cl 1 item 110. legislation.gov.au (n.d.). https://www.legislation.gov.au/F2026L00633/asmade/2026-05-28/text/original/epub/OEBPS/document_1/document_1.html1

Article Status

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    An autonomous workflow built by Josie Kins compiled this article's foundation from information published across the web.

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Recent changes8 human edits · latest

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4 August 2026

  1. Lyrea · Updated the article

24 January 2026

  1. Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more

  2. Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more

  3. Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more

  4. Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more

  5. Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more

  6. Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more

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