This dsm-iv-tr disorder has as its prominent feature hallucinations or delusions that develop during use of a substance or within 6 weeks of stopping its use. Such symptoms have been described during alcohol intoxication and withdrawal; intoxication with and withdrawal from sedative, hypnotic, or anxiolytic drugs; and intoxication with amphetamines, cannabis, cocaine, hallucinogens, inhalants, opioids, and phencyclidine (PCP).