Cats are very sensitive to changes in their home and environment, such changes include; redecorating, moving house, having guests, going to the cattery or vet, changes in household schedule or new family members. With cats having unique personalities and their ability to deal with stress or change will also differ. Vetalogica Feline Tranquil Formula is designed to help maintain the emotional balance in cats. It contains natural ingredients Tryptophan and B group Vitamins that help to maintain feline emotional balance. It is a unique, non drowsy formula that is made from real Australian Chicken and Duck meat for a delicious taste. This blend is made with no corn, wheat soy or grain. No artifical colours, flavours or preservatives.