At the initial stage in cats with any type of disease? lower urinary tract?, including feline idiopathic cystitis (FIC), crystalluria? and/or urolithiasis of any origin, urethral plugs. Dissolution of sterile struvite uroliths. For long-term use in cats prone to: feline idiopathic cystitis (FIC), struvite crystal and urolith formation, calcium oxalate and calcium phosphate crystals and uroliths (reduced occurrence and recurrence rate), urethral plug formation (almost always caused by struvite or calcium phosphate crystals ).