A vet prescription is required for the medicine you have chosen. Marbocyl P is used for infections caused by susceptible strains of organisms. In dogs, Marbocyl P is indicated in the treatment of: Skin & soft tissue infections (Skinfold Pyoderma, Impetigo, Folliculitis, Furunculosis, Cellulitis), urinary tract infections (UTI), associated or not with prostatitis, & respiratory tract infections. In cats, Marbocyl P is indicated in the treatment of: Skin & soft tissue infections (wounds, abscesses) & upper respiratory tract infections.. If you do not yet have a prescription then you can print out the following blank veterinary Prescription Form which you can ask your vet to fill in when you next visit. Please note that changes to legislation in 2005 means that Vets must offer you a prescription to take away & not just supply you the medicines directly. This is to ensure more competition & lower prices for you.