Ultra Fel-O-Fax FVRCP is a 0.5 mL feline vaccine that provides proven dual-strain calicivirus (FCV) protection resulting in a significantly less vaccine volume over the cat?s lifetime. Feline Rhinotracheitis-Calici-Panleukopenia Vaccine. Killed Virus. Cats 8 - 10 weeks of age or older. Preservatives: Thimerosal, neomycin, polymyxin B and amphotericin B. All vaccines are shipped overnight. A $29.95 flat rate fee is charged for all orders containing vaccines. Someone should be present to sign for and receive the vaccine order when it ships to you. For more shipping info click here.