Suitable for separation anxiety noise phobias fireworks or hyperactivity tablet can be given whole or crushed over food starts working after 6 8 hours but for maximum effect allow 24 36 hours suitable for dogs or cats weight between 1 20kg formulated with natural ingredients vetiq serene um calm 120 tablets is designed for hyperactive or nervous dogs it has been recommended by veterinarians to ensure your pet remains calm during periods of stress and anxiety without having a sedative effect