Tenocyclidine (TCP) is a dissociative anesthetic with psychostimulant effects.
[2] It is similar in effects to phencyclidine (PCP) but is considerably more potent.
TCP acts primarily as an NMDA receptor antagonist which blocks the activity of the NMDA receptor, however its increased psychostimulant effects compared to PCP suggests it also has relatively greater activity as a dopamine reuptake inhibitor (DRI).
Due to its similarity in effects to PCP, TCP was placed into the Schedule I list of illegal drugs in the 1970s, although it was only briefly used in the 1970s and 1980s and is now little known.
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