According to Dr. Patricia Casey, professor of psychiatry at Dublin’s Mater Hospital, there has been a noticeable increase in attendance at accident and emergency departments by teenagers taking ecstasy and LSD and suffering acute psychotic reactions to the drugs – hallucinating, delusions and perplexity.  Dr. Casey estimated the numbers brought to casualty from city venues had nearly trebled in the past year from a low base.  Mr. Stephen Rowen, director of The Rutland Centre in Dublin, said that there has been a “quite alarming” increase in young male clients in the past two years who are “in trouble with cocaine”.  Mr. Rowan said cocaine users accounted for up to 10% of people attending the treatments centre’s 6-week abstinence-based residential programme.