NEW YORK — Bondi, an 8-month-old toy poodle, had just returned from a walk when he began stumbling. His head wobbled and soon he could barely stand, so his owner, Colleen Briggs, rushed him to the vet ...

Although dogs rarely die from marijuana poisoning, treatment can be expensive, sometimes requiring a trip to the animal emergency room, a stomach pump and intravenous fluids. The stress on the patient ...