Emerging drugs of abuse.

@article{Haroz2005EmergingDO,
  title={Emerging drugs of abuse.},
  author={Rachel Haroz and Michael I. Greenberg},
  journal={The Medical clinics of North America},
  year={2005},
  volume={89 6},
  pages={1259-76}
}
Several new and emerging substances are being diverted for abuse. Most of these emerging abused substances do not cause traditional drug screens to turn positive. The health effects of these substances have not yet been fully elucidated. Health care providers should be aware of the existence of these new abused substances.