While most of our probiotics for dogs and cat probiotic supplements are designed to be given on a routine basis, Fast Balance GI Paste was formulated specifically by veterinarians to provide a quick response to the gastrointestinal (GI) system during periods of stomach upset. The Dial-A-Serving Tube makes it simple to choose the right dosage, and the unique, tasty flavor makes it easy to administer this probiotic paste to your pet. It can be used multiple times daily, or until results occur.