Composed of calming ingredients that are non addictive and non drowsy. Can be used daily or as needed, in addition to your dog's daily food - Suitable for all breed sizes and ages. Fast acting - works within 30 minutes. Enhanced calming formulation to help dogs during stressful situations such as thunderstorms, fireworks, travel or veterinary visits. A fast calming, tasty, soft chew for dogs - They love themand will eat them like a treat directly from your hand!. ADAPTIL Calming Chews for Dogs for Fast Acting Stress and Anxiety Relief 30 Chews, Brown.