Drugs of concern

In 2016–17, amphetamines were the most common principal drug of concern in treatment episodes provided to clients for their own drug use in Western Australia (33% of clients, and 36% of episodes) (Figure 14; Tables SC WA.4 and SD.8). Alcohol accounted for the second highest proportion of closed treatment episodes (29%), followed by cannabis (23%), and heroin (6%).

When episodes for additional drugs of concern are considered, cannabis (25% of episodes) was the most common additional drug, followed by nicotine (20% of episodes), alcohol (18%), and amphetamines (13%) (clients can nominate up to 5 additional drugs of concern for their treatment episode).

Over the 5 years to 2016–17, alcohol was the most common principal drug of concern in treatment episodes provided to clients for their own drug use until 2015–16, where it was replaced by amphetamines. Over this period, alcohol fell from 39% of treatment episodes to 29% in 2016–17. Conversely, the proportion of closed treatment episodes for amphetamines has increased from 20% in 2012–13 to 36% in 2016–17, which is higher than the national averages over the same period (14% in 2012–13 to 26% in 2016–17) (Table SD.2).

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