2‑FDCK Crystal Powder | High‑Purity Dissociative Research Chemical | CityChems.com

2‑FDCK is a dissociative arylcyclohexylamine analog of ketamine, acting primarily as an NMDA receptor antagonist. First synthesized in 2013, it gained attention as a designer analog to ketamine with fluorine-substitution on the phenyl ring, which may alter its pharmacokinetics and binding profile. 

Users report effects resembling those of ketamine—sensory detachment, derealization, and alteration in perception—with common effects including sedation, mild stimulation, and prolonged aftereffects lasting ~1.5–3 hours depending on dose and route. Anecdotal reports also highlight variability in intensity, occasional nausea, cognitive clouding, urinary symptoms, and emotional aftereffects. 

Important: long-term data on toxicity, neurotoxicity, or dependence is extremely limited. Impurities in some batches have reportedly caused severe reactions, so strict lab protocols and testing are advised.

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