Hi Pauline, I hope GI-Joe gets better 

The price sounds reasonable. One injection can cost up to €30 here. And there were 2 injections, control on two dogs plus the paste.
I know it can get expensive but hey, anything for the health of a family member am I correct? 

Keep us updated on Gi-Joe's progress.
Btw, I also use Hills Science Plan. It's good food