Hi Lisa. Is she on any other medications? It's very important. Pls call your Vet immediately. There are dangers with Ivermectin & other medications such as Comfortis & Heartguard. Pls read the attached thread.
My Vet was not even aware of this when I questioned it. Hope all is going to be ok. Pls update when you can on her condition. Your concerns are right on with the side effects she is having. Definitely get her checked!
Pls call your Vet immediately! http://www.yorkietalk.com/forums/yor...s-ladymom.html