Is Uva Ursi Safe For Cats? Get The Facts HereIf you are considering using homeopathic supplements to encourage urinary bladder health in your cat, you may be wondering about the safety of the common ingredient uva ursi, often called bear's berry. Uva ursi herb is an antibacterial, antiseptic and diuretic supplement that is held to help kill off germs such as e. coli which cause urinary tract infections (UTI) in cats, and at the same time encourage heavy and frequent urination, washing germs down the urethra and out, and at the same time ensuring...