Five people have died and more than 202 people have developed severe bleeding linked with the use of synthetic cannabinoids found to be laced with rat poison. The U.S. Centers for Disease Control and Prevention (CDC) has issued a warning saying these drugs, sold under a variety of names including K2 and Spice, have been contaminated with brodifacoum, a very deadly anticoagulant used in rodent poison.
PositiveTip: For maximum safety, do not use any synthetic cannabinoids.