Each Tranquil VitaRapid® treat has been carefully researched and developed to provide quick-acting and essential vitamins and minerals for your cat. Used daily, VitaRapids promote wellbeing and optimal quality of life and maintain emotional balance in cats.Quick-release Calmaphan® Tranquil formulation for cats is scientifically blended with natural ingredients. This proprietary blend of Chamomile, B-Group vitamins and Omega Oils in a synergistic blend, maintains normal nervous function for cats ..