"Some animals will only act a little 'stoned' (wobbly, lethargic) and they can be managed at home," Tina Wismer, medical director at the ASPCA animal poison control center, told The Dodo. "Others can become agitated or even comatose and those animals need veterinary intervention."
A large quantity of pot can be potentially toxic or even fatal to pets: three grams of THC per kilogram of a dog's weight can be a lethal dose, and smaller amounts can still be dangerous, triggering seizures and even comas.
"Most of the pets do very well with treatment," Dr. Proietto said, adding that treatment can include inducing vomiting and giving IV fluids. "It is sometimes the most expensive marijuana that people buy after they get their veterinary bill. We encourage people to keep it in a safe place away from their pets for their wallets and for the sake of their furry four legged kids."
If you think your dog has overdosed on marijuana, take him to the veterinarian right away to make sure the dosage he ate isn't fatal. In all likelihood, his symptoms will disappear in a day or two. But when it comes to pets and drugs, you can never be too careful. The best thing to do, if you partake, is keep your weed and marijuana-laced edibles far out of paw's reach.