The Netherlands Drug Situation 2010 - Trimbos-instituut

Amphetamine:In 2009, DIMSTM received 1,061 powders sold as speed. The majority of these powders (93,3%) contained (meth)amphetamine, with an annualaverage concentration of 27%. The purity of amphetamine powders delivered by consumers to the DIMSTM decreasedin the course of 2008 and in 2009, but in the last quarter of 2009 purity hadreturned to previous levels (see figure 10.3.2).Figure 10.3.2: Average concentration of amphetamine en caffeine in speed samples** Data based on a selection of samples containing at least a trace amphetamine (with or without caffeine).Source: DIMS TM . Trends in purity were mirrored by trends in the concentration of caffeine (which waspresent in 80 percent of all speed powders). Figure 10.3.1.2 shows the percentage ofcaffeine in all samples containing amphetamine (thus also including samples withoutcaffeine). The highest concentration of caffeine was measured in the 1st quarter of2009, returning to 34 percent in the 4th quarter of 2009. If only samples are includedwith caffeine the average concentration in 2009 was 56%. In 2009, 6% of the speed samples contained the non-controlled substance 4-fluoramphetamine, which is lower than in 2008 (10%). In the first quarters of 2010,4-methylamphetamine (4-MA) was detected in several tens of speed powders. Possibly the temporary reduction in purity of amphetamine is associated with a reducedavailability of the precursor benzyl-methyl-keton (BMK).Cocaine: large proportion of powders with medicines, especially levamisoleIn 2009, 821 powders sold as cocaine were analysed. Almost all (95%) of samples did indeed contain cocaine (among other substances),with an average concentration of 49%, which is (significantly) lower compared toprevious years (55% in 2008, 57% in 2007, 69% in 2002). In 2009 3% of the co-151