Use the Spectra Canine 10 Vaccine for Dogs with Syringe for 10-way protection. Vaccine is designed for subcutaneous vaccination of healthy dogs 6 weeks of age or older as an aid in the prevention of disease caused by canine distemper, infections canine hepatitis, canine adenovirus type 2 (CAV-2), canine coronavirus, canine parainfluenza and canine parvovirus (CPV) type 2b, leptospira canicola, leptospira grippotyphosa, leptospira icterohaemorrhagiae and leptospira pomona. To use the dog vaccine, simply open the syringe by twisting or tapping the cap against a hard surface to break the heat weld.