Narozdíl od sulfátové soli amfetaminu je metamfetamin hydrochlorid, zejména jeho krystalická forma (sníh), dostatečně těkavý na to, aby se dal kouřit.
Global amphetamine production, estimated at 126 tonnes in 2006, remains concentrated in Europe, which accounted for 79% of all amphetamine laboratories reported in 2006 (UNODC, 2008), though it is spreading to other parts of the world, notably North America and south-east Asia (61).