Hill's Prescription Diet c/d Multicare Salmon is a veterinary-formulated wet food for adult cats requiring ongoing urinary health management. Available on veterinary recommendation, it's designed for long-term control of lower urinary tract disease — covering struvite and calcium oxalate crystals and idiopathic feline cystitis — where dietary management is part of the treatment plan.

The c/d Multicare formula has been clinically tested and shown to reduce the recurrence of common feline urinary signs by 89%. It controls the mineral levels that contribute to crystal formation, manages urine pH, and supports bladder wall health. Salmon is the primary protein. The wet food format actively supports hydration — cats on wet food generally produce more dilute urine, which is a meaningful factor in urinary tract management.

Cats with recurrent urinary blockages or cystitis are the core audience. Most owners switch on veterinary advice and stay on the diet long-term — the clinical data on recurrence reduction is what distinguishes this from general urinary support foods and makes it a category standard for vets managing these cases.