I am giving injections to my dog, though they are either into the tumor itself (she has cancer) or subcutaneously. Both are very easy. I couldn't find information on the quantities either, so I give her (about 45 lbs) two injections per day of 80 cc. I do this intuitively, not sure whether it is 'correct' or not. The first few days Lucky was weak but now she has picked up quite a bit.