TROVET Urinary Calm UCD Cat is a specially formulated dietary food to prevent the formation of bladder stones and bladder stones (urolithiasis) caused by struvite and calcium oxalate in your cat. Stress plays an important role in the development of urolithiasis. As bladder problems are related to stress, ingredients have been added to Urinary Calm that help reduce stress and also help reduce the risk of bladder problems. Urinary Calm is available in dry and wet food.