Which of the following is NOT a symptom of PCP intoxication?

Drowsiness is not typically associated with PCP (phencyclidine) intoxication. PCP is a dissociative anesthetic that can cause a range of symptoms primarily characterized by its stimulant, hallucinogenic, and dissociative properties. People who are intoxicated with PCP often present with behaviors such as agitation, violence, and hallucinations, which are consistent with the drug's effects on perception and mood.

Rotatory nystagmus is a distinct eye movement abnormality that can occur with PCP use, reflecting its influence on the central nervous system. In contrast to drowsiness, which is more commonly linked to depressants or sedatives, PCP intoxication often leads to heightened states of arousal and disorientation instead of a sedative state. Therefore, the presence of unusual or violent behavior is a hallmark of PCP intoxication, but drowsiness would not be a typical symptom in this context.