Photograph of capsules containing cannabidiol (CBD) and other hemp (Cannabis sativa) derivatives. Unregulated and often untested cannabis products sold for veterinary use may contain proprietary mixtures of cannabinoids, terpenes, and flavonoids. Although early studies suggest potential benefits for osteoarthritis and seizures in dogs, uncertainties persist regarding quality control, contents of proprietary remedies, herb-drug interactions, and the impact of long-term use.