Many are unaware that all mammals have an endocannabinoid system just like humans. This means your pets are subjected to not only the same potential benefits as humans, but also to the potential risks, and most of them are significantly smaller in size and thus far more vulnerable.
In this case presentation, a 6 year old Persian cat was brought in to a veterinary clinic due to strong psychomotor agitation (movements that serve no purpose) turning into aggression. During 14 days of clinical observation the cat behaved normally and had no other unwanted behavior.
It was returned to it’s home but soon developed neurological signs. It was returned to the vet where it was observed to alternate between states of agitation and apathy, each lasting several minutes. Upon consultation with the owner it was determined that the cat had been exposed to marijuana (cannabis) smoke, which was confirmed by the presence of THC via blood toxicology tests.
Following treatment and recovery, the owner was advised to isolate the animal from marijuana smoke. Considering that your mammalian pet has the same endocannabinoid system as you, it is advised they only be exposed to the components of marijuana under appropriate medical supervision. A brief abstract is here.