Toxicological and Demographic Profiles of Phencyclidine (PCP)-Impaired Driving Cases in Houston: Updates from the 2019-2023 Data.

Phencyclidine (PCP) is a dissociative anesthetic harmful to road traffic safety as the drug may impair driving performance by inducing adverse effects such as sedation, ataxia, agitation, disorientation, and confusion. Houston Forensic Science Center (HFSC) previously reported toxicological and demographic characteristics of PCP-impaired driving cases in Houston from 2013 to 2018 and presently reports the 2019-2023 cases. The blood samples collected from suspect drivers were analyzed for alcohol and drugs and those positive for PCP at the reporting limit of 5 ng/mL were included in the study (n = 1,375).