Psychoactive substances-Some new, some old: A scan of the situation in the U.S.

Conclusion. Combining the different data sources provided a first picture of the characteristics of these users and their needs. Creditable descriptions on the risks of these drugs should be disseminated. Intervention programs should be targeted to these young users and new neuropsychobiological deficits from some of these drugs should be monitored. Because of the ever-changing chemical combinations to stay legal and the need for information on content and dosage, a more effective approach may be needed basing control on the effects of the substances rather than their changing chemical composition.