PAW Complete Calm Chews for Small Dogs are tasty oral chews for the management of anxiety and stress in small dog breeds. These calming chews are a combination of Tryptophan and a blend of vitamins and minerals to support the overall health, immunity, and nervous function of dogs. Tryptophan is a key compound for controlling stress in dogs, caused by changes in serotonin levels due to territorial aggression, dominance aggression, travel anxiety, or separation anxiety.