"The delayed phase consists of cns and respiratory depression, dyspnea, bradycardia, hypotension, shock, mydriasis, weakness, muscle paralysis, and coma"We are very pleased to present you with this overview on the potential dangers of electronic cigarettes and liquid nicotine from the toxicologists at UT Southwestern.

"There have been a growing number of cases associated with life-threatening neurotoxic effects and cardiotoxic effects"Cynthia Santos, MD gives a nice overview of the increasingly popular synthetic cannabinoids, including the range of clinical presentations, management, and the bottom line for your practice in the ED.

"Think about these substances in a patient with either an opioid, sympathomimetic, or hallucinogenic toxidrome"Alex Koyfman, MD summarizes the assorted clinical presentations of these three "legal" highs.

"Psychosis that can last for days to weeks"Unless your patient on bath salts is very forthcoming, you may be on your own when making this clinical diagnosis. Be prepared with this primer on cathinones by Kyle Brown, MD.