Protects against Canine distemper, infectious Hepatitis caused by canine Adenovirus type 1, respiratory disease caused by adenovirus type 2, Canine Para influenza, Parvo infection, Canine Corona virus, and Leptospira Canicola and L.ictero. Dogs 6 weeks of age or older should receive 2 doses administered 3 to 4 weeks apart. 25 Doses & Syringes.