Help your favorite feline feel calmer and happier with VetriScience Composure Calm & Confident Chicken Flavored Chews, Calming & Anxiety Supplement for Cats. Made with all-natural ingredients, these tasty supplement chews help soothe anxious kitties. They’re designed to work in as little as 30 minutes and to keep the gentle, calming effect lasting up to four hours. Plus, in addition to helping with anxiety, this colostrum blend helps support your BFF’s cognitive function. Simply give your little buddy the recommended number of chews during a thunderstorm, a trip to the vet, or any other stressful situation, and see them feel better quickly.