Ann Intern Med. 2013 Oct 15;159(8):563-4.

Synthetic cannabinoids: a new frontier of designer drugs.

Gunderson EW.

"Synthetic cannabinoid use has increased in the United States. The consequences are dangerous, and public health concern about these products has led to international control efforts. This commentary discusses the difficulties associated with regulating use and the need for research to aid efforts to slow the trend."