Within one hour, at least two of the following psychological symptoms: euphoria psychomotor agitation marked anxiety emotional lability grandiosity sensation of slowed time
[dsm.wikia.com]
Symptoms and Signs Intoxication, characterized by a giddy euphoria, occurs with lower doses; euphoria is often followed by bursts of anxiety or mood lability.
[merckmanuals.com]
Lower doses of phencyclidine produce vertigo, ataxia, nystagmus, mild hypertension, abnormal involuntary movements, slurred speech, nausea, weakness, slowed reaction times, euphoria
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