[header] How to diagnose and treat marijuana poisoning in cats [title] Look for depression. [step] Your cat might experience depression if it has been poisoned by marijuana. Common symptoms of feline depression include lethargy, weakness, listlessness, oversleeping, and difficulty waking your cat. 
Other telltale symptoms include : [substeps] Disinterest in play where it used to play regularly aggression toward other animals in the home refusing to use the litter box generally withdrawn and sullen behavior [title] Monitor your cat for hypothermia. [step] Hypothermia is a condition defined by a low body temperature.