Medical marijuana is legal in 28 states, though still illegal under United States federal law. As more humans turn to marijuana based treatments for their own conditions, some are finding that their pets are also experiencing relief when treated as well. Pet owners are using cannabis-based extracts, ointments and treats for issues that range from anxiety and arthritis to cancer.

Related: The National Canine Cancer Foundation: Dedicated To Finding A Cure

Because it the use of cannabis based products is illegal under federal law, there has been little research done with regard to its potential for help in humans or animals. Because of this veterinarians say there isn’t enough science to prove that cannabis is safe, or even effective in the treatment of animals, and they cannot recommend, nor prescribe it as a treatment.