Tomlyn Urinary Tract Health Chew Medium & Large Dog Supplement, 30 count; Tomlyn Urinary Tract Health Chew Dog & Cat Supplement is formulated to help keep your pet s urinary tract healthy and functioning properly. It contains natural ingredients like cranberry extract which has compounds that help prevent bacterial from attaching to the urinary tract lining. Instead, it helps flush everything out when your furry friend has to go to the bathroom. These tasty beef flavored chews are especially paw-fect for pets who constantly pee in your home or who urinate frequently.