3-Fluorodeschloroketamine (often abbreviated as 3F-DCK, 3-FDCK, or FXM) belongs to the family of arylcyclohexylamine designer drugs and is associated with recreational use similar to ketamine. This substance produces dissociative effects. Finland officially prohibited its possession and use in August 2019.

IUPAC name
CAS Number2657761-23-2
PubChem CID156538475
Chemical and physical data
Molar mass221.275 g·mol−1


1. What is 3-Fluorodeschloroketamine (3F-DCK)?

  • 3-Fluorodeschloroketamine, often abbreviated as 3F-DCK, is a synthetic designer drug that belongs to the arylcyclohexylamine class. It is structurally related to ketamine and is known for its dissociative effects.

2. How is 3F-DCK typically used?

  • 3F-DCK is commonly used recreationally. It can be ingested orally, inhaled, or insufflated (snorted). The specific method of use may vary among individuals.

3. What are the effects of 3F-DCK?

  • The effects of 3F-DCK include dissociation, altered perception of reality, and mild hallucinations. Users often describe a feeling of detachment from their surroundings.

4. Is 3F-DCK legal?

  • Legal status may vary by country and region. It’s essential to check the laws in your specific area. For example, 3F-DCK was made illegal in Finland in August 2019.

5. Is 3F-DCK safe to use?

  • The safety of using 3F-DCK is a subject of concern, as its long-term effects and potential risks are not well-documented. Like many designer drugs, there can be health risks associated with use, including unknown purity and possible adverse reactions.

6. What are the risks and side effects of using 3F-DCK?

  • Common side effects may include nausea, disorientation, hallucinations, and impaired motor skills. Overdosing can lead to more severe symptoms such as anxiety, confusion, and even potentially life-threatening conditions.

7. Can 3F-DCK be addictive?

  • There is a potential for psychological dependence on 3F-DCK with repeated use, but it is not considered highly physically addictive like some other substances.

8. How can I reduce the risks associated with 3F-DCK use?

  • If you choose to use 3F-DCK, it’s essential to start with a low dose, be in a safe environment, and have someone you trust present. Avoid mixing it with other substances, and be aware of its potential adverse effects.

9. Is there a safe or recommended dosage for 3F-DCK?

  • The dosage can vary based on an individual’s tolerance and experience. It’s crucial to start with a low dose and wait to see how your body reacts before considering more.

10. Where can I find help or support for 3F-DCK-related issues?

  • If you or someone you know is struggling with substance use or addiction, it’s essential to seek professional help. Reach out to addiction treatment centers or healthcare providers for guidance and support.

11. Can 3F-DCK be used for any medical purposes?

  • 3F-DCK is not approved for medical use and should not be considered a substitute for prescribed medications or treatments.

Remember that the information provided here is for informational purposes only, and the use of designer drugs like 3F-DCK carries risks and legal implications. Always prioritize your health and safety, and be aware of the laws in your area.


  1. “Valtioneuvoston asetus kuluttajamarkkinoilta kielletyistä psykoaktiivisista aineista” [Government Decree on Psychoactive Substances Banned from the Consumer Market]. Finlex Data Bank (in Finnish).

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