Illegal drug users more likely to use new synthetic drugs and pharmaceuticals

October 18, 2012

(Medical Xpress)—Methamphetamine users' use of synthetic cannabis products (such as Kronic) increased from ten per cent in 2010 to 41 per cent in 2011 an annual report on illegal drug use shows. Many of these synthetic cannabis products have subsequently been banned; they have contributed to an increase in new synthetic drug use, often in the form of 'legal highs', over the past three years.

The 2011 Illicit System (IDMS) study was carried out by researchers at the SHORE and Whariki Research Centre at Massey University.

Lead researcher Dr Chris Wilkins says 372 illegal drug users from Auckland, Wellington and Christchurch were interviewed late last year about trends in the use, availability, price and potency of a number of key illegal drug types and about any they had encountered in the previous six months. The study is conducted to provide timely information about changes in drug use, and inform responses such as better provision of drug treatment services and reducing barriers to entering treatment.

Overall the use of many new substances remained fairly low, Dr Wilkins says, though the proportion of frequent drug users who had tried a new drug increased from 24 per cent in 2009 to 33 per cent in 2010 and 40 per cent in 2011.

Drugs reportedly most frequently used for the first time in 2011 included ecstasy, (a medical opioid), anti-depressants, (Ritalin) and synthetic cannabis (eg Kronic, Spice).

"The use of many of these new substances remains at a fairly low level at present, but it is important to continue to monitor them closely given the speed at which new drug epidemics can develop (such as methamphetamine in the early 2000s) and, in the case of new , the potential for unpredictable ," Dr Wilkins says.

Frequent drug users are also changing the way they obtain drugs, he says.

The proportion using 'someone else's prescription' and 'doctor shopping' to obtain drugs increased from 9 per cent in 2008 to 30 per cent last year.

"The misuse of pharmaceuticals is a growing problem in many first-world countries and our findings indicate increasing use of pharmaceutical opioids, such as oxycodone, by frequent illegal drugs users in New Zealand. It is a complicated problem, though, as we need to balance making pharmaceuticals readily available to those in need with reducing their inappropriate use"

Methamphetamine use remained a problem associated with serious harm to users and others. There was some evidence that greater enforcement efforts were making an impact on the methamphetamine market with the price of a gram of methamphetamine (also known as 'P') increasing steadily from $610 per gram in 2006 to $815 in 2011.

"The strength of methamphetamine has also declined slightly since 2006. The availability of declined slightly in recent years, and this trend is strongest in Christchurch," Dr Wilkins says.

Many of the frequent drug users experienced serious health, relationship, economic and legal problems as a result of their drug use. They also reported increased instances of 'being given a drug without their knowledge' - up from 9 per cent in 2008 to 24 per cent last year, - while reports of those claiming to have had their drink 'spiked' rose from eight per cent to 19 per cent over the same period.

"These trends may reflect the growing number of new synthetic drugs which can easily be passed off as other substances or concealed in drinks," Dr Wilkins says.

More information: www.massey.ac.nz/massey/research/centres-research/shore/projects/illicit-drug-monitoring-system.cfm

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