Hill's Prescription Diet Brain Care + j d Mobility with Chicken Adult Dog Dry Food View all sale It treats and prevents fleas Size:3 pack It treats and prevents fleas and controls paralysis ticks (Ixodes holocyclus) for 13 weeks Made with proprietary ActivBiome+ ingredient technology shown to rapidly activate beneficial gut bacteria and support a healthy Gastrointestinal microbiome balance This food is also formulated to promote a urinary environment that reduces the risk of developing struvite and calcium oxalate crystals Hill's Prescription Diet Brain Care + j d Mobility with Chicken Dry Dog Food offers clinical nutrition specially formulated to support memory and learning ability in older dogs