Given Canada’s new status as the second country worldwide to legalize recreational use of marijuana, it is important for veterinarians to weigh in on the risks that marijuana can pose to our pet patients. While the change in legislation may be welcome on the human front, our concern is that people may be more prone to thinking that it is harmless or even beneficial to give marijuana to their pets.

The 24/7 Animal Poison Control Center cites a study from Colorado (where marijuana has been legal for medical use since 2005) and describes their increase in case load:
A veterinary study from Colorado published recently by the Journal of Veterinary Emergency and Critical Care reported a four-fold increase in the number of dogs treated for marijuana intoxication between 2005 and 2010, following the legalization of medical marijuana in that state. Similarly, over the past five years Pet Poison Helpline… Continue reading